2020 United States Senate elections

For related races, see 2020 United States elections.

The 2020 United States Senate elections were held on November 3, 2020,^[1] with the 33 class 2 seats of the Senate contested in regular elections.^[2] Of these, 21 were held by Republicans, and 12 by Democrats. The winners were elected to 6-year terms from January 3, 2021, to January 3, 2027.^[3] Two special elections for seats held by Republicans were also held in conjunction with the general elections: one in Arizona, to fill the vacancy created by John McCain's death in 2018; and one in Georgia, following Johnny Isakson's resignation in 2019.^[4][5][6][7] These elections ran concurrently with the 2020 United States presidential election in which incumbent president Donald Trump lost to Democratic nominee Joe Biden.

2020 United States Senate elections

← 2018 November 3, 2020 January 5, 2021 (Georgia runoffs) 2022 →
35 of the 100 seats in the United States Senate 51^[a] seats needed for a majority
Majority party Minority party   Leader Chuck Schumer Mitch McConnell Party Democratic Republican Leader since January 3, 2017 January 3, 2007 Leader's seat New York Kentucky Seats before 45 53 Seats after 48 + VP ^[b]^[c] 50^[c] Seat change 3 3 Popular vote 38,011,916 ^[d] 39,834,647^[d] Percentage 47.0% 49.3% Seats up 12 23 Races won 15 20   Third party   Party Independent Seats before 2^[e] Seats after 2 Seat change Popular vote 255,768^[f] Percentage 0.3% Seats up 0 Races won 0
Results of the elections:      Democratic gain      Republican gain      Democratic hold      Republican hold      No election Rectangular inset (Georgia): both seats up for election
Majority Leader before election Mitch McConnell Republican Elected Majority Leader Chuck Schumer^[g] Democratic

In the 2014 United States Senate elections, the last regularly scheduled elections for Class 2 Senate seats, the Republicans won 9 seats from the Democrats and gained a majority,^[8] which they continued to hold after the 2016 and 2018 elections.^[9][10] Before the elections, Republicans held 53 seats, Democrats held 45 seats, and Independents caucusing with the Democrats held 2 seats, which weren't up for re-election.^[11] Including the special elections in Arizona and Georgia, Republicans defended 23 seats and the Democrats 12.^[12]

In this election, the Democratic Party made a net gain of 3 Senate seats and the vice presidency, giving them a majority for the first time since 2014, albeit by a narrow 50–50 margin.^[a][13] Democrats unseated 4 Republicans – in Arizona, in Colorado, and in 2 elections in Georgia – while Republicans flipped a seat in Alabama; however, Democrats under-performed expectations overall; despite record-breaking turnout and fund-raising efforts, they failed to flip several seats that were considered competitive, and lost many races by much larger margins than expected.^[6][14] Except in Maine, the winning party in every Senate election was the winning party in the state's presidential election.^[15]

Due to election laws in Georgia that require candidates to win at least 50% of the vote in the general election, the state's regularly-scheduled and special Senate elections were decided in run-off elections on January 5, 2021.^[16] After the November general election, Republicans held 50 seats, while Democrats held 48 and the vice presidency, so sweeping both races was crucial for Democrats to attain a majority. They succeeded in doing so,^[7] and the partisan balance in the Senate became tied for the third time in history, after the results in the 1880 elections and the 2000 elections.^[17][18] Vice President Kamala Harris's tie-breaking vote gave Democrats control of the chamber by the smallest margin possible after the new administration took office.^[19]

This marked the first time since 1980 that either chamber of Congress flipped partisan control in a presidential election year, and the first time Democrats did so since 1948.^[20]

Election summary

Seats

Parties						Total
			Democratic	Independent	Republican
Last elections (2018)			45	2	53	100
Before these elections			45	2	53	100
Not up			33	2	30	65
	Class 1 (2018→2024)		21	2	10	33
	Class 3 (2016→2022)		12	—	20	32
Up			12	—	23	35
	Class 2 (2014→2020)		12	—	21	33
	Special: Class 3		—	—	2	2
	Regular elections
	Incumbent retired		1	—	3	4
		Held by same party	1	—	3	4
		Replaced by other party	—	—	—	0
		Result	1	—	3	4
	Incumbent ran		11	—	18	29
		Won re-election	10	—	16	26
		Lost re-election	1 Democrat replaced by   1 Republican   2 Republicans replaced by   2 Democrats			3
Special elections
	Appointee ran		—	—	2	2
		Appointee elected	—	—	0	0
		Result	2 Republicans replaced by   2 Democrats			2
Result			48^[c]	2^[e]	50^[c]	100

Votes

National results^[21]

Parties		Votes	%	Seats
				Total before	Up	Won	Total after	+/-
	Republican	39,834,647	49.29	53	23	20	50	3
	Democratic	38,011,916	47.03	45	12	15	48	3
	Libertarian	1,454,128	1.80	0	0	0	0
	Green	258,348	0.32	0	0	0	0
	Constitution	110,851	0.14	0	0	0	0
	Independent	255,768	0.32	2	0	0	2
	Other parties	794,479	0.98	0	0	0	0
	Write-in	100,946	0.12	0	0	0	0
Total		80,821,083	100.00	100	35	35	100

Change in composition

Republicans defended 23 seats, while Democrats defended 12.^[12] Each block represents one of the 100 Senate seats. "D#" is a Democratic senator, "I#" is an independent senator, and "R#" is a Republican senator. They are arranged so that the parties are separated, and a majority is clear by crossing the middle.

Before the elections

Each block indicates an incumbent senator's actions going into the election. Both Independents caucus with the Democrats.

D1	D2	D3	D4	D5	D6	D7	D8	D9	D10
D20	D19	D18	D17	D16	D15	D14	D13	D12	D11
D21	D22	D23	D24	D25	D26	D27	D28	D29	D30
D40 N.H. Ran	D39 Minn. Ran	D38 Mich. Ran	D37 Mass. Ran	D36 Ill. Ran	D35 Del. Ran	D34 Ala. Ran	D33	D32	D31
D41 N.J. Ran	D42 N.M. Retired	D43 Ore. Ran	D44 R.I. Ran	D45 Va. Ran	I1	I2	R53 Wyo. Retired	R52 W.Va. Ran	R51 Texas Ran
Majority →									R50 Tenn. Retired
R41 La. Ran	R42 Maine Ran	R43 Miss. Ran	R44 Mont. Ran	R45 Neb. Ran	R46 N.C. Ran	R47 Okla. Ran	R48 S.C. Ran	R49 S.D. Ran
R40 Ky. Ran	R39 Kan. Retired	R38 Iowa Ran	R37 Idaho Ran	R36 Ga. (sp) Ran	R35 Ga. (reg) Ran	R34 Colo. Ran	R33 Ark. Ran	R32 Ariz. (sp) Ran	R31 Alaska Ran
R21	R22	R23	R24	R25	R26	R27	R28	R29	R30
R20	R19	R18	R17	R16	R15	R14	R13	R12	R11
R1	R2	R3	R4	R5	R6	R7	R8	R9	R10

After the elections

After the January 5, 2021 runoff elections in Georgia.

D1	D2	D3	D4	D5	D6	D7	D8	D9	D10
D20	D19	D18	D17	D16	D15	D14	D13	D12	D11
D21	D22	D23	D24	D25	D26	D27	D28	D29	D30
D40 N.J. Re-elected	D39 N.H. Re-elected	D38 Minn. Re-elected	D37 Mich. Re-elected	D36 Mass. Re-elected	D35 Ill. Re-elected	D34 Del. Re-elected	D33	D32	D31
D41 N.M. Hold	D42 Ore. Re-elected	D43 R.I. Re-elected	D44 Va. Re-elected	D45 Ariz. (sp) Gain^[h]	D46 Colo. Gain	D47 Ga. (reg). Gain	D48 Ga. (sp). Gain^[h]	I1	I2
Majority (with independents and vice president)^[c] ↑
R41 Neb. Re-elected	R42 N.C. Re-elected	R43 Okla. Re-elected	R44 S.C. Re-elected	R45 S.D. Re-elected	R46 Tenn. Hold	R47 Texas Re-elected	R48 W.Va. Re-elected	R49 Wyo. Hold	R50 Ala. Gain
R40 Mont. Re-elected	R39 Miss. Re-elected	R38 Maine Re-elected	R37 La. Re-elected	R36 Ky. Re-elected	R35 Kan. Hold	R34 Iowa Re-elected	R33 Idaho Re-elected	R32 Ark. Re-elected	R31 Alaska Re-elected
R21	R22	R23	R24	R25	R26	R27	R28	R29	R30
R20	R19	R18	R17	R16	R15	R14	R13	R12	R11
R1	R2	R3	R4	R5	R6	R7	R8	R9	R10

Key:	D# Democratic R# Republican I# Independent, caucusing with Democrats

Final pre-election predictions

Several sites and individuals published predictions of competitive seats. These predictions looked at factors such as the strength of the incumbent (if the incumbent was running for re-election) and the other candidates, and the state's partisan lean (reflected in part by the state's Cook Partisan Voting Index rating). The predictions assigned ratings to each seat, indicating the predicted advantage that a party had in winning that seat. Most election predictors used:

• "tossup": no advantage
• "tilt" (used by some predictors): advantage that is not quite as strong as "lean"
• "lean": slight advantage
• "likely": significant, but surmountable, advantage
• "safe" or "solid": near-certain chance of victory

Constituency		Incumbent		2020 election ratings
State	PVI^[22]	Senator	Last election^[i]	Cook Oct 29, 2020^[23]	IE Oct 28, 2020^[24]	Sabato Nov 2, 2020^[25]	Daily Kos Nov 2, 2020^[26]	Politico Nov 2, 2020^[27]	RCP Oct 23, 2020^[28]	DDHQ Nov 3, 2020^[29]	538^[j]^[k] Nov 3, 2020^[30]	Economist Nov 3, 2020^[31]	Result^[32]
Alabama	R+14	Doug Jones	50.0% D (2017 special)^[l]	Lean R (flip)	Lean R (flip)	Likely R (flip)	Likely R (flip)	Lean R (flip)	Likely R (flip)	Safe R (flip)	Likely R (flip)	Safe R (flip)	Tuberville (60.1%) (flip)
Alaska	R+9	Dan Sullivan	48.0% R	Lean R	Lean R	Lean R	Lean R	Lean R	Lean R	Lean R	Likely R	Lean R	Sullivan (54.3%)
Arizona (special)	R+5	Martha McSally	Appointed (2019)^[m]	Lean D (flip)	Tilt D (flip)	Lean D (flip)	Lean D (flip)	Lean D (flip)	Tossup	Likely D (flip)	Likely D (flip)	Lean D (flip)	Kelly (51.2%) (flip)
Arkansas	R+15	Tom Cotton	56.5% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Safe R	Cotton (66.6%)
Colorado	D+1	Cory Gardner	48.2% R	Lean D (flip)	Lean D (flip)	Likely D (flip)	Likely D (flip)	Lean D (flip)	Lean D (flip)	Likely D (flip)	Likely D (flip)	Likely D (flip)	Hickenlooper (53.5%) (flip)
Delaware	D+6	Chris Coons	55.8% D	Safe D	Safe D	Safe D	Safe D	Solid D	Safe D	Safe D	Solid D	Safe D	Coons (59.4%)
Georgia (regular)	R+5	David Perdue	52.9% R	Tossup	Tossup	Tossup	Tossup	Tossup	Tossup	Tossup	Tossup	Tossup	Ossoff (50.6%) (flip)^[n]
Georgia (special)	R+5	Kelly Loeffler	Appointed (2020)^[o]	Tossup	Tossup	Tossup	Tossup	Lean R	Lean R	Tossup	Lean D (flip)	Tossup	Warnock (51.0%) (flip)^[n]
Idaho	R+19	Jim Risch	65.3% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Safe R	Risch (62.6%)
Illinois	D+7	Dick Durbin	53.5% D	Safe D	Safe D	Safe D	Safe D	Solid D	Safe D	Safe D	Solid D	Safe D	Durbin (54.6%)
Iowa	R+3	Joni Ernst	52.1% R	Tossup	Tossup	Lean R	Tossup	Tossup	Tossup	Tossup	Tossup	Tossup	Ernst (51.8%)
Kansas	R+13	Pat Roberts (retiring)	53.1% R	Lean R	Tilt R	Lean R	Lean R	Lean R	Lean R	Lean R	Likely R	Lean R	Marshall (53.5%)
Kentucky	R+15	Mitch McConnell	56.2% R	Likely R	Safe R	Likely R	Safe R	Likely R	Likely R	Safe R	Solid R	Likely R	McConnell (57.8%)
Louisiana	R+11	Bill Cassidy	55.9% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Likely R	Cassidy (59.3%)
Maine	D+3	Susan Collins	68.5% R	Tossup	Tilt D (flip)	Lean D (flip)	Tossup	Tossup	Tossup	Lean D (flip)	Tossup	Lean D (flip)	Collins (51.0%)
Massachusetts	D+12	Ed Markey	61.9% D	Safe D	Safe D	Safe D	Safe D	Solid D	Safe D	Safe D	Solid D	Safe D	Markey (65.8%)
Michigan	D+1	Gary Peters	54.6% D	Lean D	Lean D	Lean D	Lean D	Lean D	Tossup	Likely D	Likely D	Likely D	Peters (49.9%)
Minnesota	D+1	Tina Smith	53.0% D (2018 special)^[p]	Safe D	Safe D	Likely D	Likely D	Likely D	Tossup	Likely D	Solid D	Likely D	Smith (48.8%)
Mississippi	R+9	Cindy Hyde-Smith	53.6% R (2018 special)^[q]	Likely R	Safe R	Likely R	Safe R	Likely R	Lean R	Likely R	Likely R	Likely R	Hyde-Smith (55.3%)
Montana	R+11	Steve Daines	57.9% R	Tossup	Tossup	Lean R	Lean R	Tossup	Tossup	Lean R	Lean R	Lean R	Daines (55.0%)
Nebraska	R+14	Ben Sasse	64.5% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Safe R	Sasse (64.7%)
New Hampshire	D+1	Jeanne Shaheen	51.5% D	Safe D	Safe D	Likely D	Safe D	Likely D	Lean D	Safe D	Solid D	Safe D	Shaheen (56.7%)
New Jersey	D+7	Cory Booker	55.8% D	Safe D	Safe D	Safe D	Safe D	Solid D	Likely D	Safe D	Solid D	Safe D	Booker (56.9%)
New Mexico	D+3	Tom Udall (retiring)	55.6% D	Safe D	Safe D	Likely D	Safe D	Likely D	Lean D	Safe D	Likely D	Likely D	Luján (51.7%)
North Carolina	R+3	Thom Tillis	48.8% R	Tossup	Tilt D (flip)	Lean D (flip)	Tossup	Tossup	Tossup	Lean D (flip)	Lean D (flip)	Lean D (flip)	Tillis (48.7%)
Oklahoma	R+20	Jim Inhofe	68.0% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Safe R	Inhofe (62.9%)
Oregon	D+5	Jeff Merkley	55.7% D	Safe D	Safe D	Safe D	Safe D	Solid D	Safe D	Safe D	Solid D	Safe D	Merkley (57.0%)
Rhode Island	D+10	Jack Reed	70.6% D	Safe D	Safe D	Safe D	Safe D	Solid D	Safe D	Safe D	Solid D	Safe D	Reed (66.5%)
South Carolina	R+8	Lindsey Graham	55.3% R	Tossup	Tilt R	Lean R	Lean R	Lean R	Tossup	Lean R	Likely R	Lean R	Graham (54.5%)
South Dakota	R+14	Mike Rounds	50.4% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Safe R	Rounds (65.7%)
Tennessee	R+14	Lamar Alexander (retiring)	61.9% R	Safe R	Safe R	Safe R	Safe R	Solid R	Likely R	Safe R	Solid R	Safe R	Hagerty (62.1%)
Texas	R+8	John Cornyn	61.6% R	Lean R	Lean R	Lean R	Lean R	Lean R	Lean R	Likely R	Likely R	Lean R	Cornyn (53.6%)
Virginia	D+1	Mark Warner	49.1% D	Safe D	Safe D	Safe D	Safe D	Solid D	Likely D	Safe D	Solid D	Safe D	Warner (56.0%)
West Virginia	R+19	Shelley Moore Capito	62.1% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Safe R	Capito (70.3%)
Wyoming	R+25	Mike Enzi (retiring)	72.2% R	Safe R	Safe R	Safe R	Safe R	Solid R	Safe R	Safe R	Solid R	Safe R	Lummis (73.1%)
Overall^[r]				D – 48 R – 45 7 tossups	D – 50^[s] R – 47 3 tossups	D – 50^[s] R – 48 2 tossups	D – 48 R – 47 5 tossups	D – 48 R – 47 5 tossups	D – 45 R – 46 9 tossups	D – 50^[s] R – 47 3 tossups	D – 50^[s] R – 47 3 tossups	D – 50^[s] R – 47 3 tossups	Results: D – 50^[c] R – 50

Election dates

State	Filing deadline for major party candidates^[33]^[34]	Filing deadline for write-in candidates in major party primaries^[t]	Primary election^[33]	Primary run-off (if necessary)^[33]	Filing deadline for minor party and unaffiliated candidates^[34]	Filing deadline for minor party and unaffiliated write-in candidates^[u]	General election	Poll closing (EST)^[35]
Alabama	November 8, 2019	Ineligible^[36]	March 3, 2020	July 14, 2020	March 3, 2020	November 3, 2020^[36]	November 3, 2020	8:00pm
Alaska	June 1, 2020	Ineligible^[37]	August 18, 2020	N/A	August 18, 2020	October 29, 2020^[38]	November 3, 2020	1:00am^[v]
Arizona (special)	April 6, 2020	June 25, 2020^[39]	August 4, 2020	N/A	April 6, 2020	September 24, 2020^[39]	November 3, 2020	9:00pm
Arkansas	November 11, 2019	Ineligible^[40]	March 3, 2020	Not necessary	May 1, 2020	August 5, 2020^[40]	November 3, 2020	8:30pm
Colorado	March 17, 2020	April 24, 2020^[41]	June 30, 2020	N/A	July 9, 2020	July 16, 2020^[41]	November 3, 2020	9:00pm
Delaware	July 14, 2020	Ineligible^[42]	September 15, 2020	N/A	September 1, 2020	September 20, 2020^[43]	November 3, 2020	8:00pm
Georgia (regular)	March 6, 2020	Ineligible^[44]	June 9, 2020	Not necessary	August 14, 2020	September 7, 2020^[45]	November 3, 2020^[w]	7:00pm
Georgia (special)	March 6, 2020	Ineligible^[44]	November 3, 2020	N/A	August 14, 2020	September 7, 2020^[45]	January 5, 2021^[x]	9:00pm
Idaho	March 13, 2020	May 5, 2020^[46]	June 2, 2020	N/A	March 13, 2020	October 6, 2020^[46]	November 3, 2020	10:00pm
Illinois	December 2, 2019	January 2, 2020^[47]	March 17, 2020	N/A	July 20, 2020	September 3, 2020^[47]	November 3, 2020	8:00pm
Iowa	March 13, 2020	June 2, 2020^[48]	June 2, 2020	Not necessary	March 13, 2020	November 3, 2020^[48]	November 3, 2020	10:00pm
Kansas	June 1, 2020	Not necessary^[y]^[49]	August 4, 2020	N/A	August 3, 2020	November 3, 2020^[50]	November 3, 2020	9:00pm
Kentucky	January 10, 2020	Ineligible^[51]	June 23, 2020	N/A	June 2, 2020	October 23, 2020^[52]	November 3, 2020	7:00pm
Louisiana	July 24, 2020	Ineligible^[53]	November 3, 2020	N/A	July 24, 2020	Ineligible^[54]	Not necessary	9:00pm
Maine	March 16, 2020	April 10, 2020^[55]	July 14, 2020	N/A	June 1, 2020	September 4, 2020^[55]	November 3, 2020	8:00pm
Massachusetts	May 5, 2020	September 1, 2020^[56]	September 1, 2020	N/A	August 25, 2020	November 3, 2020^[56]	November 3, 2020	8:00pm
Michigan	May 8, 2020	July 24, 2020^[57]	August 4, 2020	N/A	August 4, 2020	October 23, 2020^[57]	November 3, 2020	8:00pm
Minnesota	June 2, 2020	May 19, 2020^[58]	August 11, 2020	N/A	June 2, 2020	October 27, 2020^[58]	November 3, 2020	9:00pm
Mississippi	January 10, 2020	Not necessary^[z]^[59]	March 10, 2020	Not necessary	January 10, 2020	November 3, 2020^[aa]^[59]	November 3, 2020	8:00pm
Montana	March 9, 2020	April 8, 2020^[60]	June 2, 2020	N/A	June 1, 2020	September 9, 2020^[60]	November 3, 2020	10:00pm
Nebraska	March 2, 2020	May 1, 2020^[61]	May 12, 2020	N/A	August 3, 2020	October 23, 2020^[61]	November 3, 2020	9:00pm
New Hampshire	June 12, 2020	September 8, 2020^[62]	September 8, 2020	N/A	September 2, 2020	November 3, 2020^[63]	November 3, 2020	8:00pm
New Jersey	March 30, 2020	July 7, 2020^[64]	July 7, 2020	N/A	July 7, 2020	November 3, 2020^[64]	November 3, 2020	8:00pm
New Mexico	March 10, 2020	March 17, 2020^[65]	June 2, 2020	N/A	June 25, 2020	June 26, 2020^[66]	November 3, 2020	9:00pm
North Carolina	December 20, 2019	Ineligible^[67]	March 3, 2020	Not necessary	March 3, 2020	July 21, 2020^[68]	November 3, 2020	7:30pm
Oklahoma	April 10, 2020	Ineligible^[69]	June 30, 2020	Not necessary	April 10, 2020	Ineligible^[54]	November 3, 2020	8:00pm
Oregon	March 10, 2020	May 19, 2020^[70]	May 19, 2020	N/A	August 25, 2020	November 3, 2020^[70]	November 3, 2020	10:00pm
Rhode Island	June 24, 2020	September 8, 2020^[71]	September 8, 2020	N/A	June 24, 2020	November 3, 2020^[71]	November 3, 2020	8:00pm
South Carolina	March 30, 2020	Ineligible^[72]	June 9, 2020	Not necessary	July 20, 2020	November 3, 2020^[73]	November 3, 2020	7:00pm
South Dakota	March 31, 2020	Ineligible^[54]	June 2, 2020	Not necessary	April 28, 2020	Ineligible^[54]	November 3, 2020	8:00pm
Tennessee	April 2, 2020	June 17, 2020^[74]	August 6, 2020	N/A	April 2, 2020	September 14, 2020^[75]	November 3, 2020	8:00pm
Texas	December 9, 2019	Ineligible^[76]	March 3, 2020	July 14, 2020	August 13, 2020^[ab]	August 17, 2020^[77]	November 3, 2020	8:00pm
Virginia	March 26, 2020	Ineligible^[78]	June 23, 2020	N/A	June 23, 2020	November 3, 2020^[79]	November 3, 2020	7:00pm
West Virginia	January 25, 2020	Ineligible^[80]	June 9, 2020	N/A	July 31, 2020	September 15, 2020^[81]	November 3, 2020	7:30pm
Wyoming	May 29, 2020	August 18, 2020^[ac]^[82]	August 18, 2020	N/A	August 25, 2020	November 3, 2020^[83]	November 3, 2020	9:00pm

Gains, losses and holds

Retirements

One Democrat and three Republicans retired instead of seeking re-election.

State	Senator	Replaced by	Ref
Kansas	Pat Roberts	Roger Marshall	^[84]
New Mexico	Tom Udall	Ben Ray Luján	^[85]
Tennessee	Lamar Alexander	Bill Hagerty	^[86]
Wyoming	Mike Enzi	Cynthia Lummis	^[87]

Defeats

One Democrat and four Republicans sought re-election but lost in the general election, that included two interim appointees who also sought elections to finish the terms.

State	Senator	Replaced by
Alabama	Doug Jones	Tommy Tuberville
Arizona (special)	Martha McSally	Mark Kelly
Colorado	Cory Gardner	John Hickenlooper
Georgia (regular)	David Perdue	Jon Ossoff
Georgia (special)	Kelly Loeffler	Raphael Warnock

Post-election changes

One Democrat resigned shortly after the start of the 117th Congress and was replaced by Democratic appointee.

State	Senator	Replaced by
California (Class 3)	Kamala Harris	Alex Padilla

Race summary

Special elections during the preceding Congress

In each special election, the winner's term begins immediately after their election is certified by their state's government.

Elections are sorted by date then state.

State (linked to summaries below)	Incumbent			Results	Candidates
	Senator	Party	Electoral history
Arizona (Class 3)	Martha McSally	Republican	2019 (Appointed)	Interim appointee lost election. New senator elected November 3, 2020. Democratic gain. Winner seated December 2, 2020.	▌ Y Mark Kelly (Democratic) 51.2% ▌Martha McSally (Republican) 48.8%
Georgia (Class 3)	Kelly Loeffler	Republican	2020 (Appointed)	Interim appointee lost election. New senator elected January 5, 2021. Democratic gain. Winner delayed term until January 20, 2021, to the start of Biden administration.	▌ Y Raphael Warnock (Democratic) 51.0%^[88] ▌Kelly Loeffler (Republican) 49.0%^[88]

Elections leading to the next Congress

In each general election, the winner is elected for the term beginning January 3, 2021.

State (linked to summaries below)	Incumbent			Results	Candidates
	Senator	Party	Electoral history
Alabama	Doug Jones	Democratic	2017 (special)	Incumbent lost re-election. New senator elected. Republican gain.	▌ Y Tommy Tuberville (Republican) 60.1% ▌Doug Jones (Democratic) 39.7%
Alaska	Dan Sullivan	Republican	2014	Incumbent re-elected.	▌ Y Dan Sullivan (Republican) 53.9% ▌Al Gross (Independent) 41.2% ▌John Wayne Howe (AKIP) 4.7%
Arkansas	Tom Cotton	Republican	2014	Incumbent re-elected.	▌ Y Tom Cotton (Republican) 66.5% ▌Ricky Dale Harrington Jr. (Libertarian) 33.5%
Colorado	Cory Gardner	Republican	2014	Incumbent lost re-election. New senator elected. Democratic gain.	▌ Y John Hickenlooper (Democratic) 53.5% ▌Cory Gardner (Republican) 44.2% ▌Raymon Doane (Libertarian) 1.7% ▌Daniel Doyle (Approval Voting) 0.3% ▌Stephan "Seku" Evans (Unity) 0.3%
Delaware	Chris Coons	Democratic	2010 (special) 2014	Incumbent re-elected.	▌ Y Chris Coons (Democratic) 59.4% ▌Lauren Witzke (Republican) 37.9% ▌Mark Turley (Delaware Independent) 1.6% ▌Nadine Frost (Libertarian) 1.1%
Georgia	David Perdue	Republican	2014	Incumbent term expired but lost re-election. New senator elected. Democratic gain. Winner delayed term until January 20, 2021, to the start of Biden administration.	First round: ▌ Y David Perdue (Republican) 49.7%^[89] ▌ Y Jon Ossoff (Democratic) 47.9%^[89] ▌Shane Hazel (Libertarian) 0.4%^[89] Runoff: ▌ Y Jon Ossoff (Democratic) 50.6%^[88] ▌David Perdue (Republican) 49.4%^[88]
Idaho	Jim Risch	Republican	2008 2014	Incumbent re-elected.	▌ Y Jim Risch (Republican) 62.6% ▌Paulette Jordan (Democratic) 33.3% ▌Natalie Fleming (Independent) 2.9% ▌Ray Writz (Constitution) 1.2%
Illinois	Dick Durbin	Democratic	1996 2002 2008 2014	Incumbent re-elected.	▌ Y Dick Durbin (Democratic) 54.9% ▌Mark Curran (Republican) 38.9% ▌Willie Wilson (Willie Wilson Party) 4% ▌Danny Malouf (Libertarian) 1.3% ▌David F. Black (Green) 0.9%
Iowa	Joni Ernst	Republican	2014	Incumbent re-elected.	▌ Y Joni Ernst (Republican) 51.8% ▌Theresa Greenfield (Democratic) 45.2% ▌Rick Stewart (Libertarian) 2.2% ▌Suzanne Herzog (Independent) 0.8%
Kansas	Pat Roberts	Republican	1996 2002 2008 2014	Incumbent retired. New senator elected. Republican hold.	▌ Y Roger Marshall (Republican) 53.2% ▌Barbara Bollier (Democratic) 41.8% ▌Jason Buckley (Libertarian) 5%
Kentucky	Mitch McConnell	Republican	1984 1990 1996 2002 2008 2014	Incumbent re-elected.	▌ Y Mitch McConnell (Republican) 57.8% ▌Amy McGrath (Democratic) 38.2% ▌Brad Barron (Libertarian) 4%
Louisiana	Bill Cassidy	Republican	2014	Incumbent re-elected.	▌ Y Bill Cassidy (Republican) 59.3% ▌Adrian Perkins (Democratic) 19% ▌Champ Edwards (Democratic) 11.1% ▌Antoine Pierce (Democratic) 2.7% ▌Dustin Murphy (Republican) 1.9% ▌Drew David Knight (Democratic) 1.8% Others ▌Beryl Billiot (Independent) 0.8% ▌John Paul Bourgeois (Independent) 0.8% ▌Peter Wenstrup (Democratic) 0.7% ▌Aaron Sigler (Libertarian) 0.5% ▌Vinny Mendoza (Independent) 0.4% ▌Melinda Mary Price (Independent) 0.4% ▌Jamar Montgomery (Independent) 0.3% ▌Reno Daret III (Independent) 0.2% ▌Xan John (Independent) 0.1%
Maine	Susan Collins	Republican	1996 2002 2008 2014	Incumbent re-elected.	▌ Y Susan Collins (Republican) 51% ▌Sara Gideon (Democratic) 42.4% ▌Lisa Savage (Independent) 5% ▌Max Linn (Independent) 1.6%
Massachusetts	Ed Markey	Democratic	2013 (special) 2014	Incumbent re-elected.	▌ Y Ed Markey (Democratic) 66.2% ▌Kevin O'Connor (Republican) 33% ▌Write-ins 0.8%
Michigan	Gary Peters	Democratic	2014	Incumbent re-elected.	▌ Y Gary Peters (Democratic) 49.9% ▌John James (Republican) 48.2% ▌Valerie Willis (U.S. Taxpayers) 0.9% ▌Marcia Squier (Green) 0.7% ▌Doug Dern (Natural Law) 0.2%
Minnesota	Tina Smith	DFL	2018 (Appointed) 2018 (special)	Incumbent re-elected.	▌ Y Tina Smith (DFL) 48.8% ▌Jason Lewis (Republican) 43.5% ▌Kevin O'Connor (Legal Marijuana Now) 5.9% ▌Oliver Steinberg (Legalize Cannabis) 1.8%
Mississippi	Cindy Hyde-Smith	Republican	2018 (Appointed) 2018 (special)	Incumbent re-elected.	▌ Y Cindy Hyde-Smith (Republican) 54.1% ▌Mike Espy (Democratic) 44.1% ▌Jimmy Edwards (Libertarian) 1.8% ▌Write-ins 0.1%
Montana	Steve Daines	Republican	2014	Incumbent re-elected.	▌ Y Steve Daines (Republican) 55% ▌Steve Bullock (Democratic) 45%
Nebraska	Ben Sasse	Republican	2014	Incumbent re-elected.	▌ Y Ben Sasse (Republican) 62.7% ▌Chris Janicek (Democratic) 24.4% ▌Preston Love Jr. (Democratic) (write-in) 6.3% ▌Gene Siadek (Libertarian) 5.0%
New Hampshire	Jeanne Shaheen	Democratic	2008 2014	Incumbent re-elected.	▌ Y Jeanne Shaheen (Democratic) 56.7% ▌Corky Messner (Republican) 41% ▌Justin O'Donnell (Libertarian) 2.3%
New Jersey	Cory Booker	Democratic	2013 (special) 2014	Incumbent re-elected.	▌ Y Cory Booker (Democratic) 57.2% ▌Rik Mehta (Republican) 40.9% ▌Madelyn R. Hoffman (Green) 0.9% ▌Veronica Fernandez (Of, By, For!) 0.7% ▌Daniel Burke (LaRouche was Right) 0.3%
New Mexico	Tom Udall	Democratic	2008 2014	Incumbent retired. New senator elected. Democratic hold.	▌ Y Ben Ray Luján (Democratic) 51.7% ▌Mark Ronchetti (Republican) 45.6% ▌Bob Walsh (Libertarian) 2.6%
North Carolina	Thom Tillis	Republican	2014	Incumbent re-elected.	▌ Y Thom Tillis (Republican) 48.7% ▌Cal Cunningham (Democratic) 46.9% ▌Shannon Bray (Libertarian) 3.1% ▌Kevin Hayes (Constitution) 1.2%
Oklahoma	Jim Inhofe	Republican	1994 (special) 1996 2002 2008 2014	Incumbent re-elected.	▌ Y Jim Inhofe (Republican) 62.9% ▌Abby Broyles (Democratic) 32.8% ▌Robert Murphy (Libertarian) 2.2% ▌Joan Farr (Independent) 1.4% ▌A. D. Nesbit (Independent) 0.7%
Oregon	Jeff Merkley	Democratic	2008 2014	Incumbent re-elected.	▌ Y Jeff Merkley (Democratic) 56.9% ▌Jo Rae Perkins (Republican) 39.3% ▌Gary Dye (Libertarian) 1.8% ▌Ibrahim Taher (Pacific Green) 1.8% ▌Write-ins 0.1%
Rhode Island	Jack Reed	Democratic	1996 2002 2008 2014	Incumbent re-elected.	▌ Y Jack Reed (Democratic) 66.6% ▌Allen Waters (Republican) 33.4%
South Carolina	Lindsey Graham	Republican	2002 2008 2014	Incumbent re-elected.	▌ Y Lindsey Graham (Republican) 54.5% ▌Jaime Harrison (Democratic) 44.2% ▌Bill Bledsoe (Constitution) 1.3%
South Dakota	Mike Rounds	Republican	2014	Incumbent re-elected.	▌ Y Mike Rounds (Republican) 65.7% ▌Dan Ahlers (Democratic) 34.3%
Tennessee	Lamar Alexander	Republican	2002 2008 2014	Incumbent retired. New senator elected. Republican hold.	▌ Y Bill Hagerty (Republican) 62.2% ▌Marquita Bradshaw (Democratic) 35.2% Others ▌Elizabeth McLeod (Independent) 0.6% ▌Yomi Faparusi (Independent) 0.4% ▌Steven Hooper (Independent) 0.3% ▌Kacey Morgan (Independent) 0.3% ▌Ronnie Henley (Independent) 0.3% ▌Aaron James (Independent) 0.2% ▌Eric Stansberry (Independent) 0.2% ▌Dean Hill (Independent) 0.2% ▌Jeffrey Grunau (Independent) 0.1%
Texas	John Cornyn	Republican	2002 2002 (Appointed) 2008 2014	Incumbent re-elected.	▌ Y John Cornyn (Republican) 53.5% ▌MJ Hegar (Democratic) 43.9% ▌Kerry McKennon (Libertarian) 1.9% ▌David B. Collins (Green) 0.7%
Virginia	Mark Warner	Democratic	2008 2014	Incumbent re-elected.	▌ Y Mark Warner (Democratic) 56% ▌Daniel Gade (Republican) 43.9%
West Virginia	Shelley Moore Capito	Republican	2014	Incumbent re-elected.	▌ Y Shelley Moore Capito (Republican) 70.3% ▌Paula Jean Swearengin (Democratic) 27% ▌David Moran (Libertarian) 2.7%
Wyoming	Mike Enzi	Republican	1996 2002 2008 2014	Incumbent retired. New senator elected. Republican hold.	▌ Y Cynthia Lummis (Republican) 73.1% ▌Merav Ben-David (Democratic) 26.9%

Closest races

12 races had a margin of victory under 10%:

State	Party of winner	Margin
Georgia (regular)	Democratic (flip)	1.23%^[ad]^[ae]
Michigan	Democratic	1.68%
North Carolina	Republican	1.75%
Georgia (special)	Democratic (flip)	2.08%
Arizona (special)	Democratic (flip)	2.35%
Minnesota	Democratic	5.24%
New Mexico	Democratic	6.11%
Iowa	Republican	6.59%
Maine	Republican	8.59%
Colorado	Democratic (flip)	9.32%
Texas	Republican	9.64%
Mississippi	Republican	9.97%

Alabama

Alabama election

← 2017 (special) 2026 →

Nominee Tommy Tuberville Doug Jones Party Republican Democratic Popular vote 1,392,076 920,478 Percentage 60.1% 39.7%

Tuberville:      50–60%      60–70%      70–80%      80-90% Jones:      50–60%      60–70%      70–80%      80–90%

U.S. senator before election Doug Jones Democratic Elected U.S. senator Tommy Tuberville Republican

Main article: 2020 United States Senate election in Alabama

See also: List of United States senators from Alabama and 2020 United States House of Representatives elections in Alabama

Incumbent Democrat Doug Jones was elected in a special election in 2017, narrowly defeating Republican nominee Roy Moore.^[91][92] He ran for a full term in 2020, losing to Republican Tommy Tuberville in a landslide.

Tuberville is a former football head coach for Auburn University. He defeated former senator and attorney general Jeff Sessions in a July 14 run-off to secure the Republican nomination, after securing President Donald Trump's endorsement. Sessions occupied the seat until 2017 when he resigned to become attorney general in the Trump administration.

Alabama is one of the country's most Republican states, and Jones's win was in part due to sexual assault allegations against nominee Roy Moore during the special election; most analysts expected the seat to flip back to GOP control. Tuberville defeated Jones by more than 20 percentage points.^[93]

Alabama Republican primary^[94]

Party		Candidate	Votes	%
	Republican	Tommy Tuberville	239,616	33.39
	Republican	Jeff Sessions	227,088	31.64
	Republican	Bradley Byrne	178,627	24.89
	Republican	Roy Moore	51,377	7.16
	Republican	Ruth Page Nelson	7,200	1.00
	Republican	Arnold Mooney	7,149	1.00
	Republican	Stanley Adair	6,608	0.92
Total votes			717,665	100.00

Alabama Republican primary runoff^[94]

Party		Candidate	Votes	%
	Republican	Tommy Tuberville	334,675	60.73
	Republican	Jeff Sessions	216,452	39.27
Total votes			551,127	100.00

Alabama general election^[95]

Party		Candidate	Votes	%	±%
	Republican	Tommy Tuberville	1,392,076	60.10%	+11.76
	Democratic	Doug Jones (incumbent)	920,478	39.74%	–10.23
	Write-in		3,891	0.17%	–1.52
Total votes			2,316,445	100.00%
	Republican gain from Democratic

Alaska

Alaska election

← 2014 2026 →

Nominee Dan Sullivan Al Gross^[af] Party Republican Independent Popular vote 191,112 146,068 Percentage 53.90% 41.19%

Borough and census area results Sullivan:      40–50%      50–60%      60–70%      70–80% Gross:      40–50%      50–60%      60–70%      70-80%

U.S. senator before election Dan Sullivan Republican Elected U.S. senator Dan Sullivan Republican

Main article: 2020 United States Senate election in Alaska

See also: List of United States senators from Alaska and 2020 United States House of Representatives election in Alaska

One-term Republican Dan Sullivan was elected in 2014, defeating incumbent Democrat Mark Begich. He defeated independent challenger Al Gross to win a second term in office.^[96]

Potential Democratic candidates included Begich, who was the Democratic nominee for governor of Alaska in 2018, and Anchorage mayor Ethan Berkowitz, who was the Democratic nominee for governor of Alaska in 2010. One Democrat, Edgar Blatchford, filed to run by the June 1 filing deadline.^[97]

Gross, an orthopedic surgeon and fisherman, declared his candidacy on July 2, 2019, as an independent.^[98] He participated in a joint primary for the Alaska Democratic Party, Alaska Libertarian Party and Alaskan Independence Party, winning the nomination as an independent supported by the Democratic Party.

Despite predictions of a close race, Sullivan defeated Gross by 12.7 percentage points.^[99]

Alaska Republican primary^[100]

Party		Candidate	Votes	%
	Republican	Dan Sullivan (incumbent)	65,257	100.00
Total votes			65,257	100.00

Alaska Democratic–Libertarian–Independence primary^[100]

Party		Candidate	Votes	%
	Independent	Al Gross	50,047	79.87
	Democratic	Edgar Blatchford	5,463	8.72
	Independence	John Howe	4,165	6.65
	Independent	Christopher Cumings	2,989	4.77
Total votes			62,664	100.00

Alaska general election^[101]

Party		Candidate	Votes	%	±%
	Republican	Dan Sullivan (incumbent)	191,112	53.90%	+5.94
	Independent	Al Gross	146,068	41.19%	–4.64
	Independence	John Howe	16,806	4.74%	+1.02
	Write-in		601	0.17%	–0.32
Total votes			354,587	100.00%
	Republican hold

Arizona (special)

Arizona special election

← 2016 2022 →

Nominee Mark Kelly Martha McSally Party Democratic Republican Popular vote 1,716,467 1,637,661 Percentage 51.2% 48.8%

County results Kelly:      50–60%      60–70%      70–80% McSally:      50–60%      60–70%      70–80%

U.S. senator before election Martha McSally Republican Elected U.S. senator Mark Kelly Democratic

Main article: 2020 United States Senate special election in Arizona

See also: List of United States senators from Arizona and 2020 United States House of Representatives elections in Arizona

Six-term Republican John McCain was re-elected in 2016, but died in office on August 25, 2018, after a battle with brain cancer.^[102] Republican governor Doug Ducey appointed former senator Jon Kyl to fill the seat temporarily.^[103] After Kyl stepped down at the end of the year, Ducey appointed outgoing U.S. Representative Martha McSally to replace him after she lost the election to the other Arizona senate seat.^[104] McSally ran in the 2020 special election to fill the remaining two years of the term,^[105] losing to Democrat Mark Kelly, a former astronaut.

Once a solidly Republican state, Arizona trended more purple in the late 2010s. Incumbent Republican Martha McSally was appointed to the late John McCain's seat two months after losing the 2018 Arizona U.S. Senate election to Democrat Kyrsten Sinema. Her Democratic opponent, astronaut Mark Kelly, raised significantly more money and generally led her by 5 to 15 points in the polling. McSally also suffered from low approval ratings due to her strong allegiance to Trump, who was unpopular in Arizona despite having won the state by 3.5 points in 2016.^[106]

Arizona Republican primary^[107]

Party		Candidate	Votes	%
	Republican	Martha McSally (incumbent)	551,119	75.20
	Republican	Daniel McCarthy	181,551	24.77
	Write-in		210	0.03
Total votes			732,880	100.00

Arizona Democratic primary^[107]

Party		Candidate	Votes	%
	Democratic	Mark Kelly	665,620	99.93
	Write-in		451	0.07
Total votes			666,071	100.00

Arizona special election^[108]

Party		Candidate	Votes	%	±%
	Democratic	Mark Kelly	1,716,467	51.16%	+10.41
	Republican	Martha McSally (incumbent)	1,637,661	48.81%	–4.90
	Write-in		1,189	0.03%	–0.03
Total votes			3,355,317	100.00%
	Democratic gain from Republican

Arkansas

Arkansas election

← 2014 2026 →

Nominee Tom Cotton Ricky Dale Harrington Jr. Party Republican Libertarian Popular vote 793,871 399,390 Percentage 66.5% 33.5%

County results Cotton:      50–60%      60–70%      70–80%      80–90% Harrington:      50–60%

U.S. senator before election Tom Cotton Republican Elected U.S. senator Tom Cotton Republican

Main article: 2020 United States Senate election in Arkansas

See also: List of United States senators from Arkansas and 2020 United States House of Representatives elections in Arkansas

One-term Republican Tom Cotton was elected in 2014, after serving two years in the United States House of Representatives, defeating incumbent Democratic senator Mark Pryor by a comfortable margin. Cotton was re-elected to a second term by a 33-point margin, defeating Libertarian Ricky Dale Harrington Jr.^{[109][110][111]}

Joshua Mahony, a non-profit executive and 2018 Democratic nominee for Congress in Arkansas's 3rd congressional district, filed to run for the Democratic nomination,^[112] but dropped out just after the filing deadline.^[113] No other Democrats filed within the filing deadline. Progressive activist Dan Whitfield ran as an independent, but suspended his campaign on October 1, 2020, after failing to qualify for the ballot.^[114]

Arkansas general election^[115]

Party		Candidate	Votes	%	±%
	Republican	Tom Cotton (incumbent)	793,871	66.53%	+10.03
	Libertarian	Ricky Dale Harrington Jr.	399,390	33.47%	+31.44
Total votes			1,193,261	100.00%
	Republican hold

Colorado

Colorado election

← 2014 2026 →

Nominee John Hickenlooper Cory Gardner Party Democratic Republican Popular vote 1,731,114 1,429,492 Percentage 53.5% 44.2%

County results Hickenlooper:      40–50%      50–60%      60–70%      70–80% Gardner:      40–50%      50–60%      60–70%      70–80%      80–90%

U.S. senator before election Cory Gardner Republican Elected U.S. senator John Hickenlooper Democratic

Main article: 2020 United States Senate election in Colorado

See also: List of United States senators from Colorado and 2020 United States House of Representatives elections in Colorado

One-term Republican Cory Gardner was elected in 2014 after serving four years in the United States House of Representatives, narrowly defeating one-term Democrat Mark Udall. Gardner sought a second term but lost to Democrat John Hickenlooper by 9.3 percentage points.^[116]

Hickenlooper is a popular former governor of Colorado, and led Gardner by as much as 20 percentage points in polls, with most pundits considering him a heavy favorite. Gardner was Colorado's only Republican statewide officeholder, and the once purple state has trended increasingly Democratic since his narrow win in 2014. Gardner also had low approval ratings due to his strong allegiance to Trump, who lost Colorado in 2016 to Hillary Clinton by 4.9%, and in 2020 to Joe Biden by 13.5%.^[117][118] Hickenlooper also raised significantly more money than Gardner.^[119]

Colorado Republican primary^[120]

Party		Candidate	Votes	%
	Republican	Cory Gardner (incumbent)	554,806	100.00
Total votes			554,806	100.00

Colorado Democratic primary^[121]

Party		Candidate	Votes	%
	Democratic	John Hickenlooper	585,826	58.65
	Democratic	Andrew Romanoff	412,955	41.35
Total votes			998,781	100.00

Colorado general election^[122]

Party		Candidate	Votes	%	±%
	Democratic	John Hickenlooper	1,731,114	53.50%	+7.24
	Republican	Cory Gardner (incumbent)	1,429,492	44.18%	–4.03
	Libertarian	Raymon Doane	56,262	1.74%	–0.85
	Approval Voting	Daniel Doyle	9,820	0.30%	N/A
	Unity	Stephen Evans	8,971	0.28%	–0.04
Total votes			3,235,659	100.00%
	Democratic gain from Republican

Delaware

Delaware election

← 2014 2026 →

Nominee Chris Coons Lauren Witzke Party Democratic Republican Popular vote 291,804 186,054 Percentage 59.4% 37.9%

County results Coons:      50–60%      60–70% Witzke:      50–60%

U.S. senator before election Chris Coons Democratic Elected U.S. senator Chris Coons Democratic

Main article: 2020 United States Senate election in Delaware

See also: List of United States senators from Delaware and 2020 United States House of Representatives election in Delaware

One-term Democrat Chris Coons was re-elected in 2014; he first took office after winning a 2010 special election, which occurred after long-time senator Joe Biden resigned to become vice president of the United States (Biden also won the 2020 presidential election and became president). He faced an unsuccessful primary challenge from technology executive Jessica Scarane. Conservative activist Lauren Witzke and attorney Jim DeMartino ran for the Republican nomination.

The Delaware primary was held on September 15, 2020.^[123]

Delaware Democratic primary^[124]

Party		Candidate	Votes	%
	Democratic	Chris Coons (incumbent)	87,332	72.85
	Democratic	Jessica Scarane	32,547	27.15
Total votes			119,879	100.00

Republican primary results^[124]

Party		Candidate	Votes	%
	Republican	Lauren Witzke	30,702	56.89
	Republican	James DeMartino	23,266	43.11
Total votes			53,968	100.00

Delaware general election^[125]

Party		Candidate	Votes	%	±%
	Democratic	Chris Coons (incumbent)	291,804	59.44%	+3.61
	Republican	Lauren Witzke	186,054	37.90%	–4.33
	Independent	Mark Turley	7,833	1.59%	N/A
	Libertarian	Nadine Frost	5,244	1.07%	N/A
Total votes			490,935	100.00%
	Democratic hold

Georgia

See also: List of United States senators from Georgia and 2020 United States House of Representatives elections in Georgia

Due to Republican senator Johnny Isakson's resignation from office for health reasons in 2019, both of Georgia's Senate seats were up for election in November 2020.^[126] The state had tilted Republican in Senate races since the mid-1990s, but increased support for Democrats in populous suburbs has made office elections more competitive; a close governor's race, multiple close U.S. House races, and many other close local office races resulted in Democratic gains in 2018 elections. Both the regular and special election were considered highly competitive toss-ups.^[127] Both of these elections received national attention, as if Republicans won at least one of these seats, they would maintain a Senate majority, but if the Democrats won both, the Senate would be split 50/50 with Vice President Kamala Harris breaking the tie.

Georgia (regular)

2020–21 United States Senate election in Georgia

← 2014 November 3, 2020 (first round) January 5, 2021 (runoff) 2026 →
Turnout	65.4%   (first round) 61.5%   (runoff)
Candidate Jon Ossoff David Perdue Party Democratic Republican First round 2,374,519 47.95% 2,462,617 49.73% Runoff 2,269,923 50.61% 2,214,979 49.39%
First round county results   Runoff county results County results Ossoff:      50–60%      60–70%      70–80%      80–90% Perdue:      40–50%      50–60%      60–70%      70–80%      80–90%      >90%
U.S. senator before election David Perdue Republican Elected U.S. Senator Jon Ossoff Democratic

Main article: 2020–21 United States Senate election in Georgia

One-term Republican David Perdue was elected in 2014, and sought a second term.^[128]

Jon Ossoff, a former congressional candidate, documentary film producer, and investigative journalist, defeated former Columbus mayor Teresa Tomlinson and 2018 lieutenant governor nominee Sarah Riggs Amico in the Democratic primary to secure nomination.^[129][130] He faced incumbent Republican David Perdue in the November 3 election.

In the November election, no candidate received 50% or more of the total vote; per Georgia law, the election advanced to a run-off between the top two finishers, Ossoff and Perdue, on January 5, 2021. Ossoff was projected the winner on January 6,^[131] and Perdue conceded on January 8.^[132]

Georgia Republican primary^[133]

Party		Candidate	Votes	%
	Republican	David Perdue (incumbent)	992,555	100.00
Total votes			992,555	100.00

Georgia Democratic primary^[134]

Party		Candidate	Votes	%
	Democratic	Jon Ossoff	626,819	52.82
	Democratic	Teresa Tomlinson	187,416	15.79
	Democratic	Sarah Riggs Amico	139,574	11.76
	Democratic	Maya Dillard-Smith	105,000	8.85
	Democratic	James Knox	49,452	4.17
	Democratic	Marckeith DeJesus	45,936	3.87
	Democratic	Tricia Carpenter McCracken	32,463	2.74
Total votes			1,186,660	100.00

Georgia general election^[89]

Party		Candidate	Votes	%	±%
	Republican	David Perdue (incumbent)	2,462,617	49.73%	–3.16
	Democratic	Jon Ossoff	2,374,519	47.95%	+2.74
	Libertarian	Shane T. Hazel	115,039	2.32%	+0.42
Total votes			4,952,175	100.00%

Georgia general election runoff^[135]

Party		Candidate	Votes	%	±%
	Democratic	Jon Ossoff	2,269,923	50.61%	+5.40
	Republican	David Perdue (incumbent)	2,214,979	49.39%	–3.50
Total votes			4,484,902	100.00%
	Democratic gain from Republican

Georgia (special)

2020–21 United States Senate special election in Georgia

← 2016 November 3, 2020 (first round) January 5, 2021 (runoff) 2022 →
Turnout	65.3%   (first round) 59.7%   (runoff)
Candidate Raphael Warnock Kelly Loeffler Party Democratic Republican First round 1,617,035 32.90% 1,273,214 25.91% Runoff 2,289,113 51.04% 2,195,841 48.96%       Candidate Doug Collins Deborah Jackson Party Republican Democratic First round 980,454 19.95% 324,118 6.59% Runoff Eliminated Eliminated
First round county results   Runoff county results Warnock:      20–30%      30–40%      40–50%      50–60%      60–70%      70–80%      80–90% Loeffler:      20–30%      30–40%      40–50%      50–60%      60–70%      70–80%      80–90%      >90% Collins:      20–30%      30–40%      40–50%      50–60%
U.S. senator before election Kelly Loeffler Republican Elected U.S. Senator Raphael Warnock Democratic

}}

Main article: 2020–21 United States Senate special election in Georgia

Three-term senator Johnny Isakson announced on August 28, 2019, that he would resign from the Senate on December 31, 2019, citing health concerns.^[136] Georgia governor Brian Kemp appointed Republican Kelly Loeffler to replace Isakson until a special election could be held; Loeffler took office on January 6, 2020, and competed in the November 2020 election to retain her seat.^[137]

Other Republicans who ran for the seat included Wayne Johnson, former chief operating officer of the Office of Federal Student Aid,^[138] and four-term U.S. representative Doug Collins.^[139]

A "jungle primary" was held November 3, 2020, but no candidate won more than 50% of the vote, so a run-off election between the top two finishers, Loeffler and Democratic challenger Raphael Warnock, was held on January 5, 2021.^[140] Warnock defeated Loeffler, who initially refused to concede and vowed to challenge the outcome,^[141] but conceded on January 7, after the storming of the U.S. Capitol.^[142]

Georgia special election^[143]

Party		Candidate	Votes	%
	Democratic	Raphael Warnock	1,617,035	32.90
	Republican	Kelly Loeffler (incumbent)	1,273,214	25.91
	Republican	Doug Collins	980,454	19.95
	Democratic	Deborah Jackson	324,118	6.59
	Democratic	Matt Lieberman	136,021	2.77
	Democratic	Tamara Johnson-Shealey	106,767	2.17
	Democratic	Jamesia James	94,406	1.92
	Republican	Derrick Grayson	51,592	1.05
	Democratic	Joy Felicia Slade	44,945	0.91
	Republican	Annette Davis Jackson	44,335	0.90
	Republican	Kandiss Taylor	40,349	0.82
	Republican	Wayne Johnson (withdrawn)	36,176	0.74
	Libertarian	Brian Slowinski	35,431	0.72
	Democratic	Richard Dien Winfield	28,687	0.58
	Democratic	Ed Tarver	26,333	0.54
	Independent	Allen Buckley	17,954	0.36
	Green	John Fortuin	15,293	0.31
	Independent	Al Bartell	14,640	0.30
	Independent	Valencia Stovall	13,318	0.27
	Independent	Michael Todd Greene	13,293	0.27
Total votes			4,914,361	100.00

Georgia special election runoff^[144]

Party		Candidate	Votes	%	±%
	Democratic	Raphael Warnock	2,289,113	51.04%	+10.00
	Republican	Kelly Loeffler (incumbent)	2,195,841	48.96%	–5.84
Total votes			4,484,954	100.00%
	Democratic gain from Republican

Idaho

Idaho election

← 2014 2026 →

Nominee Jim Risch Paulette Jordan Party Republican Democratic Popular vote 537,446 285,864 Percentage 62.6% 33.3%

County results Risch:      50–60%      60–70%      70–80%      80–90% Jordan:      50–60%      60–70%

U.S. senator before election Jim Risch Republican Elected U.S. senator Jim Risch Republican

Main article: 2020 United States Senate election in Idaho

See also: List of United States senators from Idaho and 2020 United States House of Representatives elections in Idaho

Two-term republican Jim Risch successfully ran for a third term in 2020, defeating Democrat Paulette Jordan in a landslide. Jordan is a former gubernatorial nominee and former Coeur d'Alene Tribal Councilwoman.

Idaho Republican primary^[145]

Party		Candidate	Votes	%
	Republican	Jim Risch (incumbent)	200,184	100.00
Total votes			200,184	100.00

Idaho Democratic primary^[145]

Party		Candidate	Votes	%
	Democratic	Paulette Jordan	72,778	85.70
	Democratic	James Vandermaas	12,145	14.30
Total votes			84,923	100.00

Idaho general election^[146]

Party		Candidate	Votes	%	±%
	Republican	Jim Risch (incumbent)	538,446	62.62%	–2.71
	Democratic	Paulette Jordan	285,864	33.25%	–1.42
	Independent	Natalie Fleming	25,329	2.95%	N/A
	Constitution	Ray Writz	10,188	1.18%	N/A
Total votes			859,827	100.00%
	Republican hold

Illinois

Illinois election

← 2014 2026 →

Nominee Dick Durbin Mark Curran Party Democratic Republican Popular vote 3,278,930 2,319,870 Percentage 54.9% 38.9%

County results Durbin:      40–50%      50–60%      60–70%      70–80% Curran:      40–50%      50–60%      60–70%      70–80%      80–90%

U.S. senator before election Dick Durbin Democratic Elected U.S. senator Dick Durbin Democratic

Main article: 2020 United States Senate election in Illinois

See also: List of United States senators from Illinois and 2020 United States House of Representatives elections in Illinois

Four-term democrat and Senate minority whip Dick Durbin, easily won a fifth term in office, defeating Republican Mark Curran by a 16-point margin.^[147]

Curran served as sheriff of Lake County from 2006 to 2018 and won the Republican primary with 41.55% of the vote.^[148]

Antiwar activist Marilyn Jordan Lawlor^[149] and state representative Anne Stava-Murray^[150] briefly challenged Durbin in the Democratic primary, but both ended up withdrawing.^[151][152]

2019 Chicago mayoral candidate Willie Wilson, a businessman and perennial candidate, ran as a member of the "Willie Wilson Party," with the backing of a handful of Chicago aldermen and the Chicago Police Union.

Illinois Democratic primary^[153]

Party		Candidate	Votes	%
	Democratic	Dick Durbin (incumbent)	1,446,118	100.00
Total votes			1,446,118	100.00

Illinois Republican primary^[153]

Party		Candidate	Votes	%
	Republican	Mark Curran	205,747	41.55
	Republican	Peggy Hubbard	113,189	22.86
	Republican	Robert Marshall	75,561	15.26
	Republican	Tom Tarter	73,009	14.74
	Republican	Casey Chlebek	27,655	5.58
	Write-in		7	0.00
Total votes			495,168	100.00

Illinois general election^[154]

Party		Candidate	Votes	%	±%
	Democratic	Dick Durbin (incumbent)	3,278,930	54.93%	+1.38
	Republican	Mark Curran	2,319,870	38.87%	–3.82
	Willie Wilson	Willie Wilson	237,699	3.98%	N/A
	Libertarian	Danny Malouf	75,673	1.27%	–2.49
	Green	David Black	55,711	0.95%	N/A
	Write-in		18	0.00%	±0.00
Total votes			5,967,901	100.00%
	Democratic hold

Iowa

Iowa election

← 2014 2026 →

Nominee Joni Ernst Theresa Greenfield Party Republican Democratic Popular vote 864,997 754,859 Percentage 51.7% 45.2%

County results Ernst:      40–50%      50–60%      60–70%      70–80%      80–90% Greenfield:      40–50%      50–60%      60–70%

U.S. senator before election Joni Ernst Republican Elected U.S. senator Joni Ernst Republican

Main article: 2020 United States Senate election in Iowa

See also: List of United States senators from Iowa and 2020 United States House of Representatives elections in Iowa

One-term republican Joni Ernst, first elected to the Senate in 2014, won a second term in office, defeating Democrat Theresa Greenfield.^[155]

Greenfield won the Democratic nomination, defeating former vice-admiral Michael T. Franken, attorney Kimberly Graham, and businessman Eddie Mauro in the primary.

Ernst's popularity had dropped in polls, and many considered this seat a possible Democratic pick-up, but Ernst was re-elected by a larger-than-expected 6.5 points.

Iowa Republican primary^[156]

Party		Candidate	Votes	%
	Republican	Joni Ernst (incumbent)	226,589	98.64
	Write-in		3,132	1.36
Total votes			229,721	100.00

Democratic primary results^[156]

Party		Candidate	Votes	%
	Democratic	Theresa Greenfield	132,001	47.71
	Democratic	Michael T. Franken	68,851	24.88
	Democratic	Kimberly Graham	41,554	15.02
	Democratic	Eddie Mauro	30,400	10.99
	Democratic	Cal Woods (withdrawn)	3,372	1.21
	Write-in		514	0.19
Total votes			276,692	100.00

Iowa general election^[157]

Party		Candidate	Votes	%	±%
	Republican	Joni Ernst (incumbent)	864,997	51.74%	–0.36
	Democratic	Theresa Greenfield	754,859	45.15%	+1.39
	Libertarian	Rick Stewart	36,961	2.21%	+1.48
	Independent	Suzanne Herzog	13,800	0.83%	N/A
	Write-in		1,211	0.07%	–0.03
Total votes			1,671,828	100.00%
	Republican hold

Kansas

Kansas election

← 2014 2026 →

Nominee Roger Marshall Barbara Bollier Party Republican Democratic Popular vote 727,962 571,530 Percentage 53.2% 41.8%

County results Marshall:      50–60%      60–70%      70–80%      80–90%      >90% Bollier:      40–50%      50–60%      60–70%

U.S. senator before election Pat Roberts Republican Elected U.S. senator Roger Marshall Republican

Main article: 2020 United States Senate election in Kansas

See also: List of United States senators from Kansas and 2020 United States House of Representatives elections in Kansas

Four-term Republican Pat Roberts, was re-elected in 2014 with 53.15% of the vote, and announced on January 4, 2019, that he would not be running for re-election in 2020.

In the Republican primary, United States representative Roger Marshall defeated former Kansas secretary of state Kris Kobach,^[158] state Turnpike Authority chairman Dave Lindstrom,^[159] state senate president Susan Wagle, and others.^[160]

There was considerable speculation about a Senate bid by Mike Pompeo (the United States secretary of state, former director of the Central Intelligence Agency, and former U.S. representative for Kansas's 4th congressional district), but he did not run.^[161][162]

Barbara Bollier, a state senator and former Republican,^[163] defeated former congressional candidate Robert Tillman^[164] for the Democratic nomination, but lost to Marshall with a more than expected 11.4 point margin.

Kansas Republican primary^[165]

Party		Candidate	Votes	%
	Republican	Roger Marshall	167,800	40.28
	Republican	Kris Kobach	108,726	26.10
	Republican	Bob Hamilton	77,952	18.71
	Republican	Dave Lindstrom	27,451	6.59
	Republican	Steve Roberts	8,141	1.95
	Republican	Brian Matlock	7,083	1.70
	Republican	Lance Berland	6,404	1.54
	Republican	John Miller	4,431	1.06
	Republican	Derek Ellis	3,970	0.95
	Republican	Gabriel Robles	3,744	0.90
	Republican	John Berman	861	0.21
Total votes			416,563	100.00

Kansas Democratic primary^[165]

Party		Candidate	Votes	%
	Democratic	Barbara Bollier	168,759	85.34
	Democratic	Robert Tillman	28,997	14.66
Total votes			197,756	100.00

Kansas general election^[166]

Party		Candidate	Votes	%	±%
	Republican	Roger Marshall	727,962	53.22%	+0.07
	Democratic	Barbara Bollier	571,530	41.79%	N/A
	Libertarian	Jason Buckley	68,263	4.99%	+0.67
Total votes			1,367,755	100.00%
	Republican hold

Kentucky

Kentucky election

← 2014 2026 →

Nominee Mitch McConnell Amy McGrath Party Republican Democratic Popular vote 1,233,315 816,257 Percentage 57.8% 38.2%

County results McConnell:      50–60%      60–70%      70–80%      80-90% McGrath:      50–60%

U.S. senator before election Mitch McConnell Republican Elected U.S. senator Mitch McConnell Republican

Main article: 2020 United States Senate election in Kentucky

See also: List of United States senators from Kentucky and 2020 United States House of Representatives elections in Kentucky

Republican Mitch McConnell, the Senate Majority Leader, defeated Democrat Amy McGrath by 19.6 percentage points, winning a 7th term in office.

Kentucky Republican primary^[167]

Party		Candidate	Votes	%
	Republican	Mitch McConnell (incumbent)	342,660	82.80
	Republican	Wesley Morgan	25,588	6.18
	Republican	Louis Grider	13,771	3.33
	Republican	Paul John Frangedakis	11,957	2.89
	Republican	Neren James	10,693	2.58
	Republican	Kenneth Lowndes	5,548	1.34
	Republican	Nicholas Alsager	3,603	0.87
Total votes			413,820	100.00

Kentucky Democratic primary^[167]

Party		Candidate	Votes	%
	Democratic	Amy McGrath	247,037	45.41
	Democratic	Charles Booker	231,888	42.62
	Democratic	Mike Broihier	27,175	4.99
	Democratic	Mary Ann Tobin	11,108	2.04
	Democratic	Maggie Joe Hilliard	6,224	1.14
	Democratic	Andrew Maynard	5,974	1.10
	Democratic	Bennie J. Smith	5,040	0.93
	Democratic	Jimmy Ausbrooks (withdrawn)	3,629	0.67
	Democratic	Eric Rothmuller	2,995	0.55
	Democratic	John R. Sharpensteen	2,992	0.55
Total votes			544,062	100.00

Kentucky general election^[168]

Party		Candidate	Votes	%	±%
	Republican	Mitch McConnell (incumbent)	1,233,315	57.76%	+1.57
	Democratic	Amy McGrath	816,257	38.23%	–2.49
	Libertarian	Brad Barron	85,386	4.00%	+0.92
	Write-in		99	0.01%	±0.00
Total votes			2,135,057	100.00%
	Republican hold

Louisiana

Louisiana election

← 2014 2026 →

Nominee Bill Cassidy Adrian Perkins Derrick Edwards Party Republican Democratic Democratic Popular vote 1,228,908 394,049 229,814 Percentage 59.3% 19.0% 11.1%

County results Cassidy:      30–40%      40–50%      50–60%      60–70%      70–80%      80–90% Perkins:      40–50%

U.S. senator before election Bill Cassidy Republican Elected U.S. senator Bill Cassidy Republican

Main article: 2020 United States Senate election in Louisiana

See also: List of United States senators from Louisiana and 2020 United States House of Representatives elections in Louisiana

Republican Bill Cassidy won a second term in office, defeating Democrat Adrian Perkins and others.^[169]

A Louisiana primary (a form of jungle primary) was held on November 3. Had no candidate won a majority of the vote in the primary, a run-off election would have been held, but Cassidy won in the first round.

Louisiana blanket primary^[170]

Party		Candidate	Votes	%
	Republican	Bill Cassidy (incumbent)	1,228,908	59.32
	Democratic	Adrian Perkins	394,049	19.02
	Democratic	Derrick Edwards	229,814	11.09
	Democratic	Antoine Pierce	55,710	2.69
	Republican	Dustin Murphy	38,383	1.85
	Democratic	Drew Knight	36,962	1.78
	Independent	Beryl Billiot	17,362	0.84
	Independent	John Paul Bourgeois	16,518	0.80
	Democratic	Peter Wenstrup	14,454	0.70
	Libertarian	Aaron Sigler	11,321	0.55
	Independent	M.V. "Vinny" Mendoza	7,811	0.38
	Independent	Melinda Mary Price	7,680	0.37
	Independent	Jamar Montgomery	5,804	0.28
	Independent	Reno Jean Daret III	3,954	0.19
	Independent	Alexander "Xan" John	2,813	0.14
Total votes			2,071,543	100.00
	Republican hold

Maine

Maine election

← 2014 2026 →

Nominee Susan Collins Sara Gideon Party Republican Democratic Popular vote 417,645^[ag] 347,223^[ag] Percentage 50.98% 42.39%

County results Collins:      40–50%      50–60%      60–70% Gideon:      40–50%      50–60%

U.S. senator before election Susan Collins Republican Elected U.S. senator Susan Collins Republican

Main article: 2020 United States Senate election in Maine

See also: List of United States senators from Maine and 2020 United States House of Representatives elections in Maine

Republican Susan Collins won a fifth term in office, defeating Speaker of the Maine House of Representatives Sara Gideon.^[171]

Gideon consistently led Collins in polls for almost the entire election cycle. Collins is considered one of the most moderate Republicans in the Senate and had never faced a competitive re-election campaign, even though Maine leans Democratic. But she faced growing unpopularity due to her increasingly conservative voting record, and her votes to confirm Brett Kavanaugh to the Supreme Court and to acquit Trump in his impeachment trial. Despite almost all polling and Gideon's formidable funding,^[172] Collins was re-elected by a surprising 8.6-point margin.

Educator and activist Lisa Savage also ran as a candidate for the Green party.^[173]

Maine Republican primary^[174]

Party		Candidate	Votes	%
	Republican	Susan Collins (incumbent)	87,375	98.79
	Write-in		1,073	1.21
Total votes			88,448	100.00

Maine Democratic primary^[175]

Party		Candidate	Votes	%
	Democratic	Sara Gideon	116,264	71.47
	Democratic	Betsy Sweet	37,327	22.94
	Democratic	Bre Kidman	9,090	5.59
Total votes			162,681	100.00

Maine general election^[176]

Party		Candidate	Votes	%	±%
	Republican	Susan Collins (incumbent)	417,645	50.98%	–17.48
	Democratic	Sara Gideon	347,223	42.39%	+10.89
	Independent	Lisa Savage	40,579	4.95%	N/A
	Independent	Max Linn	13,508	1.65%	N/A
	Write-in		228	0.03%	–0.01
Total votes			819,183	100.00%
	Republican hold

Massachusetts

Massachusetts election

← 2014 2026 →

Nominee Ed Markey Kevin O'Connor Party Democratic Republican Popular vote 2,357,809 1,177,765 Percentage 66.15% 33.05%

County results   Municipality results County results Markey::      40–50%      50–60%      60–70%      70–80%      80–90%      >90% O'Connor:      40–50%      50–60%      60–70% Tie:      40–50%

U.S March 14, 2024 Latest articles January 01, 1970 Register of Historic Parks and Gardens January 01, 1970 Registered representative (securities) January 01, 1970 Registrar of the treasury January 01, 1970 Registrum Gregorii January 01, 1970 Registry (disambiguation) January 01, 1970 Regis Ghezelbash January 01, 1970 Regis High School (Iowa) January 01, 1970 Regius Professor of Divinity January 01, 1970 Regnière-Écluse January 01, 1970 Regrets... I've Had a Few Most Read January 01, 1970 US Snowboarding Grand Prix January 01, 1970 US South January 01, 1970 US Second Lieutenant January 01, 1970 US Senate Foreign Relations Committee January 01, 1970 US Singles Chart 2020, united, states, senate, elections, related, races, 2020, united, states, elections, were, held, november, 2020, with, class, seats, senate, contested, regular, elections, these, were, held, republicans, democrats, winners, were, elected, year, terms, fro. For related races see 2020 United States elections The 2020 United States Senate elections were held on November 3 2020 1 with the 33 class 2 seats of the Senate contested in regular elections 2 Of these 21 were held by Republicans and 12 by Democrats The winners were elected to 6 year terms from January 3 2021 to January 3 2027 3 Two special elections for seats held by Republicans were also held in conjunction with the general elections one in Arizona to fill the vacancy created by John McCain s death in 2018 and one in Georgia following Johnny Isakson s resignation in 2019 4 5 6 7 These elections ran concurrently with the 2020 United States presidential election in which incumbent president Donald Trump lost to Democratic nominee Joe Biden 2020 United States Senate elections 2018 November 3 2020January 5 2021 Georgia runoffs 2022 35 of the 100 seats in the United States Senate51 a seats needed for a majority Majority party Minority party Leader Chuck Schumer Mitch McConnellParty Democratic RepublicanLeader since January 3 2017 January 3 2007Leader s seat New York KentuckySeats before 45 53Seats after 48 VP b c 50 c Seat change 3 3Popular vote 38 011 916 d 39 834 647 d Percentage 47 0 49 3 Seats up 12 23Races won 15 20 Third party Party IndependentSeats before 2 e Seats after 2Seat changePopular vote 255 768 f Percentage 0 3 Seats up 0Races won 0Results of the elections Democratic gain Republican gain Democratic hold Republican hold No election Rectangular inset Georgia both seats up for electionMajority Leader before electionMitch McConnellRepublican Elected Majority Leader Chuck Schumer g DemocraticIn the 2014 United States Senate elections the last regularly scheduled elections for Class 2 Senate seats the Republicans won 9 seats from the Democrats and gained a majority 8 which they continued to hold after the 2016 and 2018 elections 9 10 Before the elections Republicans held 53 seats Democrats held 45 seats and Independents caucusing with the Democrats held 2 seats which weren t up for re election 11 Including the special elections in Arizona and Georgia Republicans defended 23 seats and the Democrats 12 12 In this election the Democratic Party made a net gain of 3 Senate seats and the vice presidency giving them a majority for the first time since 2014 albeit by a narrow 50 50 margin a 13 Democrats unseated 4 Republicans in Arizona in Colorado and in 2 elections in Georgia while Republicans flipped a seat in Alabama however Democrats under performed expectations overall despite record breaking turnout and fund raising efforts they failed to flip several seats that were considered competitive and lost many races by much larger margins than expected 6 14 Except in Maine the winning party in every Senate election was the winning party in the state s presidential election 15 Due to election laws in Georgia that require candidates to win at least 50 of the vote in the general election the state s regularly scheduled and special Senate elections were decided in run off elections on January 5 2021 16 After the November general election Republicans held 50 seats while Democrats held 48 and the vice presidency so sweeping both races was crucial for Democrats to attain a majority They succeeded in doing so 7 and the partisan balance in the Senate became tied for the third time in history after the results in the 1880 elections and the 2000 elections 17 18 Vice President Kamala Harris s tie breaking vote gave Democrats control of the chamber by the smallest margin possible after the new administration took office 19 This marked the first time since 1980 that either chamber of Congress flipped partisan control in a presidential election year and the first time Democrats did so since 1948 20 Contents 1 Election summary 1 1 Seats 1 2 Votes 2 Change in composition 2 1 Before the elections 2 2 After the elections 3 Final pre election predictions 4 Election dates 5 Gains losses and holds 5 1 Retirements 5 2 Defeats 5 3 Post election changes 6 Race summary 6 1 Special elections during the preceding Congress 6 2 Elections leading to the next Congress 7 Closest races 8 Alabama 9 Alaska 10 Arizona special 11 Arkansas 12 Colorado 13 Delaware 14 Georgia 14 1 Georgia regular 14 2 Georgia special 15 Idaho 16 Illinois 17 Iowa 18 Kansas 19 Kentucky 20 Louisiana 21 Maine 22 Massachusetts 23 Michigan 24 Minnesota 25 Mississippi 26 Montana 27 Nebraska 28 New Hampshire 29 New Jersey 30 New Mexico 31 North Carolina 32 Oklahoma 33 Oregon 34 Rhode Island 35 South Carolina 36 South Dakota 37 Tennessee 38 Texas 39 Virginia 40 West Virginia 41 Wyoming 42 See also 43 Notes 44 References 45 Further readingElection summary editSeats edit Parties TotalDemocratic Independent RepublicanLast elections 2018 45 2 53 100Before these elections 45 2 53 100Not up 33 2 30 65Class 1 2018 2024 21 2 10 33Class 3 2016 2022 12 20 32Up 12 23 35Class 2 2014 2020 12 21 33Special Class 3 2 2Regular electionsIncumbent retired 1 3 4Held by same party 1 3 4Replaced by other party 0Result 1 3 4Incumbent ran 11 18 29Won re election 10 16 26Lost re election nbsp 1 Democrat replaced by nbsp 1 Republican nbsp 2 Republicans replaced by nbsp 2 Democrats 3Special electionsAppointee ran 2 2Appointee elected 0 0Result nbsp 2 Republicans replaced by nbsp 2 Democrats 2Result 48 c 2 e 50 c 100Votes edit National results 21 nbsp Parties Votes SeatsTotalbefore Up Won Totalafter Republican 39 834 647 49 29 53 23 20 50 nbsp 3Democratic 38 011 916 47 03 45 12 15 48 nbsp 3Libertarian 1 454 128 1 80 0 0 0 0 nbsp Green 258 348 0 32 0 0 0 0 nbsp Constitution 110 851 0 14 0 0 0 0 nbsp Independent 255 768 0 32 2 0 0 2 nbsp Other parties 794 479 0 98 0 0 0 0 nbsp Write in 100 946 0 12 0 0 0 0 nbsp Total 80 821 083 100 00 100 35 35 100 nbsp Change in composition editRepublicans defended 23 seats while Democrats defended 12 12 Each block represents one of the 100 Senate seats D is a Democratic senator I is an independent senator and R is a Republican senator They are arranged so that the parties are separated and a majority is clear by crossing the middle Before the elections edit Each block indicates an incumbent senator s actions going into the election Both Independents caucus with the Democrats D1 D2 D3 D4 D5 D6 D7 D8 D9 D10D20 D19 D18 D17 D16 D15 D14 D13 D12 D11D21 D22 D23 D24 D25 D26 D27 D28 D29 D30D40N H Ran D39Minn Ran D38Mich Ran D37Mass Ran D36Ill Ran D35Del Ran D34Ala Ran D33 D32 D31D41N J Ran D42N M Retired D43Ore Ran D44R I Ran D45Va Ran I1 I2 R53Wyo Retired R52W Va Ran R51Texas RanMajority R50Tenn RetiredR41La Ran R42Maine Ran R43Miss Ran R44Mont Ran R45Neb Ran R46N C Ran R47Okla Ran R48S C Ran R49S D RanR40Ky Ran R39Kan Retired R38Iowa Ran R37Idaho Ran R36Ga sp Ran R35Ga reg Ran R34Colo Ran R33Ark Ran R32Ariz sp Ran R31Alaska RanR21 R22 R23 R24 R25 R26 R27 R28 R29 R30R20 R19 R18 R17 R16 R15 R14 R13 R12 R11R1 R2 R3 R4 R5 R6 R7 R8 R9 R10After the elections edit After the January 5 2021 runoff elections in Georgia D1 D2 D3 D4 D5 D6 D7 D8 D9 D10D20 D19 D18 D17 D16 D15 D14 D13 D12 D11D21 D22 D23 D24 D25 D26 D27 D28 D29 D30D40N J Re elected D39N H Re elected D38Minn Re elected D37Mich Re elected D36Mass Re elected D35Ill Re elected D34Del Re elected D33 D32 D31D41N M Hold D42Ore Re elected D43R I Re elected D44Va Re elected D45Ariz sp Gain h D46Colo Gain D47Ga reg Gain D48Ga sp Gain h I1 I2Majority with independents and vice president c R41Neb Re elected R42N C Re elected R43Okla Re elected R44S C Re elected R45S D Re elected R46Tenn Hold R47Texas Re elected R48W Va Re elected R49Wyo Hold R50Ala GainR40Mont Re elected R39Miss Re elected R38Maine Re elected R37La Re elected R36Ky Re elected R35Kan Hold R34Iowa Re elected R33Idaho Re elected R32Ark Re elected R31Alaska Re electedR21 R22 R23 R24 R25 R26 R27 R28 R29 R30R20 R19 R18 R17 R16 R15 R14 R13 R12 R11R1 R2 R3 R4 R5 R6 R7 R8 R9 R10Key D DemocraticR RepublicanI Independent caucusing with DemocratsFinal pre election predictions editSeveral sites and individuals published predictions of competitive seats These predictions looked at factors such as the strength of the incumbent if the incumbent was running for re election and the other candidates and the state s partisan lean reflected in part by the state s Cook Partisan Voting Index rating The predictions assigned ratings to each seat indicating the predicted advantage that a party had in winning that seat Most election predictors used tossup no advantage tilt used by some predictors advantage that is not quite as strong as lean lean slight advantage likely significant but surmountable advantage safe or solid near certain chance of victoryConstituency Incumbent 2020 election ratingsState PVI 22 Senator Lastelection i CookOct 29 2020 23 IEOct 28 2020 24 SabatoNov 2 2020 25 Daily KosNov 2 2020 26 PoliticoNov 2 2020 27 RCPOct 23 2020 28 DDHQNov 3 2020 29 538 j k Nov 3 2020 30 EconomistNov 3 2020 31 Result 32 Alabama R 14 Doug Jones 50 0 D 2017 special l Lean R flip Lean R flip Likely R flip Likely R flip Lean R flip Likely R flip Safe R flip Likely R flip Safe R flip Tuberville 60 1 flip Alaska R 9 Dan Sullivan 48 0 R Lean R Lean R Lean R Lean R Lean R Lean R Lean R Likely R Lean R Sullivan 54 3 Arizona special R 5 Martha McSally Appointed 2019 m Lean D flip Tilt D flip Lean D flip Lean D flip Lean D flip Tossup Likely D flip Likely D flip Lean D flip Kelly 51 2 flip Arkansas R 15 Tom Cotton 56 5 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Safe R Cotton 66 6 Colorado D 1 Cory Gardner 48 2 R Lean D flip Lean D flip Likely D flip Likely D flip Lean D flip Lean D flip Likely D flip Likely D flip Likely D flip Hickenlooper 53 5 flip Delaware D 6 Chris Coons 55 8 D Safe D Safe D Safe D Safe D Solid D Safe D Safe D Solid D Safe D Coons 59 4 Georgia regular R 5 David Perdue 52 9 R Tossup Tossup Tossup Tossup Tossup Tossup Tossup Tossup Tossup Ossoff 50 6 flip n Georgia special R 5 Kelly Loeffler Appointed 2020 o Tossup Tossup Tossup Tossup Lean R Lean R Tossup Lean D flip Tossup Warnock 51 0 flip n Idaho R 19 Jim Risch 65 3 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Safe R Risch 62 6 Illinois D 7 Dick Durbin 53 5 D Safe D Safe D Safe D Safe D Solid D Safe D Safe D Solid D Safe D Durbin 54 6 Iowa R 3 Joni Ernst 52 1 R Tossup Tossup Lean R Tossup Tossup Tossup Tossup Tossup Tossup Ernst 51 8 Kansas R 13 Pat Roberts retiring 53 1 R Lean R Tilt R Lean R Lean R Lean R Lean R Lean R Likely R Lean R Marshall 53 5 Kentucky R 15 Mitch McConnell 56 2 R Likely R Safe R Likely R Safe R Likely R Likely R Safe R Solid R Likely R McConnell 57 8 Louisiana R 11 Bill Cassidy 55 9 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Likely R Cassidy 59 3 Maine D 3 Susan Collins 68 5 R Tossup Tilt D flip Lean D flip Tossup Tossup Tossup Lean D flip Tossup Lean D flip Collins 51 0 Massachusetts D 12 Ed Markey 61 9 D Safe D Safe D Safe D Safe D Solid D Safe D Safe D Solid D Safe D Markey 65 8 Michigan D 1 Gary Peters 54 6 D Lean D Lean D Lean D Lean D Lean D Tossup Likely D Likely D Likely D Peters 49 9 Minnesota D 1 Tina Smith 53 0 D 2018 special p Safe D Safe D Likely D Likely D Likely D Tossup Likely D Solid D Likely D Smith 48 8 Mississippi R 9 Cindy Hyde Smith 53 6 R 2018 special q Likely R Safe R Likely R Safe R Likely R Lean R Likely R Likely R Likely R Hyde Smith 55 3 Montana R 11 Steve Daines 57 9 R Tossup Tossup Lean R Lean R Tossup Tossup Lean R Lean R Lean R Daines 55 0 Nebraska R 14 Ben Sasse 64 5 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Safe R Sasse 64 7 New Hampshire D 1 Jeanne Shaheen 51 5 D Safe D Safe D Likely D Safe D Likely D Lean D Safe D Solid D Safe D Shaheen 56 7 New Jersey D 7 Cory Booker 55 8 D Safe D Safe D Safe D Safe D Solid D Likely D Safe D Solid D Safe D Booker 56 9 New Mexico D 3 Tom Udall retiring 55 6 D Safe D Safe D Likely D Safe D Likely D Lean D Safe D Likely D Likely D Lujan 51 7 North Carolina R 3 Thom Tillis 48 8 R Tossup Tilt D flip Lean D flip Tossup Tossup Tossup Lean D flip Lean D flip Lean D flip Tillis 48 7 Oklahoma R 20 Jim Inhofe 68 0 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Safe R Inhofe 62 9 Oregon D 5 Jeff Merkley 55 7 D Safe D Safe D Safe D Safe D Solid D Safe D Safe D Solid D Safe D Merkley 57 0 Rhode Island D 10 Jack Reed 70 6 D Safe D Safe D Safe D Safe D Solid D Safe D Safe D Solid D Safe D Reed 66 5 South Carolina R 8 Lindsey Graham 55 3 R Tossup Tilt R Lean R Lean R Lean R Tossup Lean R Likely R Lean R Graham 54 5 South Dakota R 14 Mike Rounds 50 4 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Safe R Rounds 65 7 Tennessee R 14 Lamar Alexander retiring 61 9 R Safe R Safe R Safe R Safe R Solid R Likely R Safe R Solid R Safe R Hagerty 62 1 Texas R 8 John Cornyn 61 6 R Lean R Lean R Lean R Lean R Lean R Lean R Likely R Likely R Lean R Cornyn 53 6 Virginia D 1 Mark Warner 49 1 D Safe D Safe D Safe D Safe D Solid D Likely D Safe D Solid D Safe D Warner 56 0 West Virginia R 19 Shelley Moore Capito 62 1 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Safe R Capito 70 3 Wyoming R 25 Mike Enzi retiring 72 2 R Safe R Safe R Safe R Safe R Solid R Safe R Safe R Solid R Safe R Lummis 73 1 Overall r D 48R 457 tossups D 50 s R 473 tossups D 50 s R 482 tossups D 48R 475 tossups D 48R 475 tossups D 45R 469 tossups D 50 s R 473 tossups D 50 s R 473 tossups D 50 s R 473 tossups Results D 50 c R 50Election dates editState Filing deadline formajor party candidates 33 34 Filing deadline forwrite in candidates in major party primaries t Primaryelection 33 Primaryrun off if necessary 33 Filing deadline for minorparty and unaffiliated candidates 34 Filing deadline for minor partyand unaffiliated write in candidates u Generalelection Poll closing EST 35 Alabama November 8 2019 Ineligible 36 March 3 2020 July 14 2020 March 3 2020 November 3 2020 36 November 3 2020 8 00pmAlaska June 1 2020 Ineligible 37 August 18 2020 N A August 18 2020 October 29 2020 38 November 3 2020 1 00am v Arizona special April 6 2020 June 25 2020 39 August 4 2020 N A April 6 2020 September 24 2020 39 November 3 2020 9 00pmArkansas November 11 2019 Ineligible 40 March 3 2020 Not necessary May 1 2020 August 5 2020 40 November 3 2020 8 30pmColorado March 17 2020 April 24 2020 41 June 30 2020 N A July 9 2020 July 16 2020 41 November 3 2020 9 00pmDelaware July 14 2020 Ineligible 42 September 15 2020 N A September 1 2020 September 20 2020 43 November 3 2020 8 00pmGeorgia regular March 6 2020 Ineligible 44 June 9 2020 Not necessary August 14 2020 September 7 2020 45 November 3 2020 w 7 00pmGeorgia special March 6 2020 Ineligible 44 November 3 2020 N A August 14 2020 September 7 2020 45 January 5 2021 x 9 00pmIdaho March 13 2020 May 5 2020 46 June 2 2020 N A March 13 2020 October 6 2020 46 November 3 2020 10 00pmIllinois December 2 2019 January 2 2020 47 March 17 2020 N A July 20 2020 September 3 2020 47 November 3 2020 8 00pmIowa March 13 2020 June 2 2020 48 June 2 2020 Not necessary March 13 2020 November 3 2020 48 November 3 2020 10 00pmKansas June 1 2020 Not necessary y 49 August 4 2020 N A August 3 2020 November 3 2020 50 November 3 2020 9 00pmKentucky January 10 2020 Ineligible 51 June 23 2020 N A June 2 2020 October 23 2020 52 November 3 2020 7 00pmLouisiana July 24 2020 Ineligible 53 November 3 2020 N A July 24 2020 Ineligible 54 Not necessary 9 00pmMaine March 16 2020 April 10 2020 55 July 14 2020 N A June 1 2020 September 4 2020 55 November 3 2020 8 00pmMassachusetts May 5 2020 September 1 2020 56 September 1 2020 N A August 25 2020 November 3 2020 56 November 3 2020 8 00pmMichigan May 8 2020 July 24 2020 57 August 4 2020 N A August 4 2020 October 23 2020 57 November 3 2020 8 00pmMinnesota June 2 2020 May 19 2020 58 August 11 2020 N A June 2 2020 October 27 2020 58 November 3 2020 9 00pmMississippi January 10 2020 Not necessary z 59 March 10 2020 Not necessary January 10 2020 November 3 2020 aa 59 November 3 2020 8 00pmMontana March 9 2020 April 8 2020 60 June 2 2020 N A June 1 2020 September 9 2020 60 November 3 2020 10 00pmNebraska March 2 2020 May 1 2020 61 May 12 2020 N A August 3 2020 October 23 2020 61 November 3 2020 9 00pmNew Hampshire June 12 2020 September 8 2020 62 September 8 2020 N A September 2 2020 November 3 2020 63 November 3 2020 8 00pmNew Jersey March 30 2020 July 7 2020 64 July 7 2020 N A July 7 2020 November 3 2020 64 November 3 2020 8 00pmNew Mexico March 10 2020 March 17 2020 65 June 2 2020 N A June 25 2020 June 26 2020 66 November 3 2020 9 00pmNorth Carolina December 20 2019 Ineligible 67 March 3 2020 Not necessary March 3 2020 July 21 2020 68 November 3 2020 7 30pmOklahoma April 10 2020 Ineligible 69 June 30 2020 Not necessary April 10 2020 Ineligible 54 November 3 2020 8 00pmOregon March 10 2020 May 19 2020 70 May 19 2020 N A August 25 2020 November 3 2020 70 November 3 2020 10 00pmRhode Island June 24 2020 September 8 2020 71 September 8 2020 N A June 24 2020 November 3 2020 71 November 3 2020 8 00pmSouth Carolina March 30 2020 Ineligible 72 June 9 2020 Not necessary July 20 2020 November 3 2020 73 November 3 2020 7 00pmSouth Dakota March 31 2020 Ineligible 54 June 2 2020 Not necessary April 28 2020 Ineligible 54 November 3 2020 8 00pmTennessee April 2 2020 June 17 2020 74 August 6 2020 N A April 2 2020 September 14 2020 75 November 3 2020 8 00pmTexas December 9 2019 Ineligible 76 March 3 2020 July 14 2020 August 13 2020 ab August 17 2020 77 November 3 2020 8 00pmVirginia March 26 2020 Ineligible 78 June 23 2020 N A June 23 2020 November 3 2020 79 November 3 2020 7 00pmWest Virginia January 25 2020 Ineligible 80 June 9 2020 N A July 31 2020 September 15 2020 81 November 3 2020 7 30pmWyoming May 29 2020 August 18 2020 ac 82 August 18 2020 N A August 25 2020 November 3 2020 83 November 3 2020 9 00pmGains losses and holds editRetirements edit One Democrat and three Republicans retired instead of seeking re election State Senator Replaced by RefKansas Pat Roberts Roger Marshall 84 New Mexico Tom Udall Ben Ray Lujan 85 Tennessee Lamar Alexander Bill Hagerty 86 Wyoming Mike Enzi Cynthia Lummis 87 Defeats edit One Democrat and four Republicans sought re election but lost in the general election that included two interim appointees who also sought elections to finish the terms State Senator Replaced byAlabama Doug Jones Tommy TubervilleArizona special Martha McSally Mark KellyColorado Cory Gardner John HickenlooperGeorgia regular David Perdue Jon OssoffGeorgia special Kelly Loeffler Raphael WarnockPost election changes edit One Democrat resigned shortly after the start of the 117th Congress and was replaced by Democratic appointee State Senator Replaced byCalifornia Class 3 Kamala Harris Alex PadillaRace summary editSpecial elections during the preceding Congress edit In each special election the winner s term begins immediately after their election is certified by their state s government Elections are sorted by date then state State linked tosummaries below Incumbent Results CandidatesSenator Party Electoral historyArizona Class 3 Martha McSally Republican 2019 Appointed Interim appointee lost election New senator elected November 3 2020 Democratic gain Winner seated December 2 2020 nbsp Y Mark Kelly Democratic 51 2 Martha McSally Republican 48 8 Georgia Class 3 Kelly Loeffler Republican 2020 Appointed Interim appointee lost election New senator elected January 5 2021 Democratic gain Winner delayed term until January 20 2021 to the start of Biden administration nbsp Y Raphael Warnock Democratic 51 0 88 Kelly Loeffler Republican 49 0 88 Elections leading to the next Congress edit In each general election the winner is elected for the term beginning January 3 2021 State linked tosummaries below Incumbent Results CandidatesSenator Party Electoral historyAlabama Doug Jones Democratic 2017 special Incumbent lost re election New senator elected Republican gain nbsp Y Tommy Tuberville Republican 60 1 Doug Jones Democratic 39 7 Alaska Dan Sullivan Republican 2014 Incumbent re elected nbsp Y Dan Sullivan Republican 53 9 Al Gross Independent 41 2 John Wayne Howe AKIP 4 7 Arkansas Tom Cotton Republican 2014 Incumbent re elected nbsp Y Tom Cotton Republican 66 5 Ricky Dale Harrington Jr Libertarian 33 5 Colorado Cory Gardner Republican 2014 Incumbent lost re election New senator elected Democratic gain nbsp Y John Hickenlooper Democratic 53 5 Cory Gardner Republican 44 2 Raymon Doane Libertarian 1 7 Daniel Doyle Approval Voting 0 3 Stephan Seku Evans Unity 0 3 Delaware Chris Coons Democratic 2010 special 2014 Incumbent re elected nbsp Y Chris Coons Democratic 59 4 Lauren Witzke Republican 37 9 Mark Turley Delaware Independent 1 6 Nadine Frost Libertarian 1 1 Georgia David Perdue Republican 2014 Incumbent term expired but lost re election New senator elected Democratic gain Winner delayed term until January 20 2021 to the start of Biden administration First round nbsp Y David Perdue Republican 49 7 89 nbsp Y Jon Ossoff Democratic 47 9 89 Shane Hazel Libertarian 0 4 89 Runoff nbsp Y Jon Ossoff Democratic 50 6 88 David Perdue Republican 49 4 88 Idaho Jim Risch Republican 20082014 Incumbent re elected nbsp Y Jim Risch Republican 62 6 Paulette Jordan Democratic 33 3 Natalie Fleming Independent 2 9 Ray Writz Constitution 1 2 Illinois Dick Durbin Democratic 1996200220082014 Incumbent re elected nbsp Y Dick Durbin Democratic 54 9 Mark Curran Republican 38 9 Willie Wilson Willie Wilson Party 4 Danny Malouf Libertarian 1 3 David F Black Green 0 9 Iowa Joni Ernst Republican 2014 Incumbent re elected nbsp Y Joni Ernst Republican 51 8 Theresa Greenfield Democratic 45 2 Rick Stewart Libertarian 2 2 Suzanne Herzog Independent 0 8 Kansas Pat Roberts Republican 1996200220082014 Incumbent retired New senator elected Republican hold nbsp Y Roger Marshall Republican 53 2 Barbara Bollier Democratic 41 8 Jason Buckley Libertarian 5 Kentucky Mitch McConnell Republican 198419901996200220082014 Incumbent re elected nbsp Y Mitch McConnell Republican 57 8 Amy McGrath Democratic 38 2 Brad Barron Libertarian 4 Louisiana Bill Cassidy Republican 2014 Incumbent re elected nbsp Y Bill Cassidy Republican 59 3 Adrian Perkins Democratic 19 Champ Edwards Democratic 11 1 Antoine Pierce Democratic 2 7 Dustin Murphy Republican 1 9 Drew David Knight Democratic 1 8 Others Beryl Billiot Independent 0 8 John Paul Bourgeois Independent 0 8 Peter Wenstrup Democratic 0 7 Aaron Sigler Libertarian 0 5 Vinny Mendoza Independent 0 4 Melinda Mary Price Independent 0 4 Jamar Montgomery Independent 0 3 Reno Daret III Independent 0 2 Xan John Independent 0 1 Maine Susan Collins Republican 1996200220082014 Incumbent re elected nbsp Y Susan Collins Republican 51 Sara Gideon Democratic 42 4 Lisa Savage Independent 5 Max Linn Independent 1 6 Massachusetts Ed Markey Democratic 2013 special 2014 Incumbent re elected nbsp Y Ed Markey Democratic 66 2 Kevin O Connor Republican 33 Write ins 0 8 Michigan Gary Peters Democratic 2014 Incumbent re elected nbsp Y Gary Peters Democratic 49 9 John James Republican 48 2 Valerie Willis U S Taxpayers 0 9 Marcia Squier Green 0 7 Doug Dern Natural Law 0 2 Minnesota Tina Smith DFL 2018 Appointed 2018 special Incumbent re elected nbsp Y Tina Smith DFL 48 8 Jason Lewis Republican 43 5 Kevin O Connor Legal Marijuana Now 5 9 Oliver Steinberg Legalize Cannabis 1 8 Mississippi Cindy Hyde Smith Republican 2018 Appointed 2018 special Incumbent re elected nbsp Y Cindy Hyde Smith Republican 54 1 Mike Espy Democratic 44 1 Jimmy Edwards Libertarian 1 8 Write ins 0 1 Montana Steve Daines Republican 2014 Incumbent re elected nbsp Y Steve Daines Republican 55 Steve Bullock Democratic 45 Nebraska Ben Sasse Republican 2014 Incumbent re elected nbsp Y Ben Sasse Republican 62 7 Chris Janicek Democratic 24 4 Preston Love Jr Democratic write in 6 3 Gene Siadek Libertarian 5 0 New Hampshire Jeanne Shaheen Democratic 20082014 Incumbent re elected nbsp Y Jeanne Shaheen Democratic 56 7 Corky Messner Republican 41 Justin O Donnell Libertarian 2 3 New Jersey Cory Booker Democratic 2013 special 2014 Incumbent re elected nbsp Y Cory Booker Democratic 57 2 Rik Mehta Republican 40 9 Madelyn R Hoffman Green 0 9 Veronica Fernandez Of By For 0 7 Daniel Burke LaRouche was Right 0 3 New Mexico Tom Udall Democratic 20082014 Incumbent retired New senator elected Democratic hold nbsp Y Ben Ray Lujan Democratic 51 7 Mark Ronchetti Republican 45 6 Bob Walsh Libertarian 2 6 North Carolina Thom Tillis Republican 2014 Incumbent re elected nbsp Y Thom Tillis Republican 48 7 Cal Cunningham Democratic 46 9 Shannon Bray Libertarian 3 1 Kevin Hayes Constitution 1 2 Oklahoma Jim Inhofe Republican 1994 special 1996200220082014 Incumbent re elected nbsp Y Jim Inhofe Republican 62 9 Abby Broyles Democratic 32 8 Robert Murphy Libertarian 2 2 Joan Farr Independent 1 4 A D Nesbit Independent 0 7 Oregon Jeff Merkley Democratic 20082014 Incumbent re elected nbsp Y Jeff Merkley Democratic 56 9 Jo Rae Perkins Republican 39 3 Gary Dye Libertarian 1 8 Ibrahim Taher Pacific Green 1 8 Write ins 0 1 Rhode Island Jack Reed Democratic 1996200220082014 Incumbent re elected nbsp Y Jack Reed Democratic 66 6 Allen Waters Republican 33 4 South Carolina Lindsey Graham Republican 200220082014 Incumbent re elected nbsp Y Lindsey Graham Republican 54 5 Jaime Harrison Democratic 44 2 Bill Bledsoe Constitution 1 3 South Dakota Mike Rounds Republican 2014 Incumbent re elected nbsp Y Mike Rounds Republican 65 7 Dan Ahlers Democratic 34 3 Tennessee Lamar Alexander Republican 200220082014 Incumbent retired New senator elected Republican hold nbsp Y Bill Hagerty Republican 62 2 Marquita Bradshaw Democratic 35 2 Others Elizabeth McLeod Independent 0 6 Yomi Faparusi Independent 0 4 Steven Hooper Independent 0 3 Kacey Morgan Independent 0 3 Ronnie Henley Independent 0 3 Aaron James Independent 0 2 Eric Stansberry Independent 0 2 Dean Hill Independent 0 2 Jeffrey Grunau Independent 0 1 Texas John Cornyn Republican 20022002 Appointed 20082014 Incumbent re elected nbsp Y John Cornyn Republican 53 5 MJ Hegar Democratic 43 9 Kerry McKennon Libertarian 1 9 David B Collins Green 0 7 Virginia Mark Warner Democratic 20082014 Incumbent re elected nbsp Y Mark Warner Democratic 56 Daniel Gade Republican 43 9 West Virginia Shelley Moore Capito Republican 2014 Incumbent re elected nbsp Y Shelley Moore Capito Republican 70 3 Paula Jean Swearengin Democratic 27 David Moran Libertarian 2 7 Wyoming Mike Enzi Republican 1996200220082014 Incumbent retired New senator elected Republican hold nbsp Y Cynthia Lummis Republican 73 1 Merav Ben David Democratic 26 9 Closest races edit12 races had a margin of victory under 10 State Party of winner MarginGeorgia regular Democratic flip 1 23 ad ae Michigan Democratic 1 68 North Carolina Republican 1 75 Georgia special Democratic flip 2 08 Arizona special Democratic flip 2 35 Minnesota Democratic 5 24 New Mexico Democratic 6 11 Iowa Republican 6 59 Maine Republican 8 59 Colorado Democratic flip 9 32 Texas Republican 9 64 Mississippi Republican 9 97 Alabama editAlabama election nbsp 2017 special 2026 nbsp nbsp Nominee Tommy Tuberville Doug JonesParty Republican DemocraticPopular vote 1 392 076 920 478Percentage 60 1 39 7 nbsp Tuberville 50 60 60 70 70 80 80 90 Jones 50 60 60 70 70 80 80 90 U S senator before electionDoug JonesDemocratic Elected U S senator Tommy TubervilleRepublicanMain article 2020 United States Senate election in Alabama See also List of United States senators from Alabama and 2020 United States House of Representatives elections in Alabama Incumbent Democrat Doug Jones was elected in a special election in 2017 narrowly defeating Republican nominee Roy Moore 91 92 He ran for a full term in 2020 losing to Republican Tommy Tuberville in a landslide Tuberville is a former football head coach for Auburn University He defeated former senator and attorney general Jeff Sessions in a July 14 run off to secure the Republican nomination after securing President Donald Trump s endorsement Sessions occupied the seat until 2017 when he resigned to become attorney general in the Trump administration Alabama is one of the country s most Republican states and Jones s win was in part due to sexual assault allegations against nominee Roy Moore during the special election most analysts expected the seat to flip back to GOP control Tuberville defeated Jones by more than 20 percentage points 93 Alabama Republican primary 94 Party Candidate Votes Republican Tommy Tuberville 239 616 33 39Republican Jeff Sessions 227 088 31 64Republican Bradley Byrne 178 627 24 89Republican Roy Moore 51 377 7 16Republican Ruth Page Nelson 7 200 1 00Republican Arnold Mooney 7 149 1 00Republican Stanley Adair 6 608 0 92Total votes 717 665 100 00Alabama Republican primary runoff 94 Party Candidate Votes Republican Tommy Tuberville 334 675 60 73Republican Jeff Sessions 216 452 39 27Total votes 551 127 100 00Alabama general election 95 Party Candidate Votes Republican Tommy Tuberville 1 392 076 60 10 11 76Democratic Doug Jones incumbent 920 478 39 74 10 23Write in 3 891 0 17 1 52Total votes 2 316 445 100 00 Republican gain from DemocraticAlaska editAlaska election nbsp 20142026 nbsp nbsp Nominee Dan Sullivan Al Gross af Party Republican IndependentPopular vote 191 112 146 068Percentage 53 90 41 19 nbsp Borough and census area resultsSullivan 40 50 50 60 60 70 70 80 Gross 40 50 50 60 60 70 70 80 U S senator before electionDan SullivanRepublican Elected U S senator Dan SullivanRepublicanMain article 2020 United States Senate election in Alaska See also List of United States senators from Alaska and 2020 United States House of Representatives election in Alaska One term Republican Dan Sullivan was elected in 2014 defeating incumbent Democrat Mark Begich He defeated independent challenger Al Gross to win a second term in office 96 Potential Democratic candidates included Begich who was the Democratic nominee for governor of Alaska in 2018 and Anchorage mayor Ethan Berkowitz who was the Democratic nominee for governor of Alaska in 2010 One Democrat Edgar Blatchford filed to run by the June 1 filing deadline 97 Gross an orthopedic surgeon and fisherman declared his candidacy on July 2 2019 as an independent 98 He participated in a joint primary for the Alaska Democratic Party Alaska Libertarian Party and Alaskan Independence Party winning the nomination as an independent supported by the Democratic Party Despite predictions of a close race Sullivan defeated Gross by 12 7 percentage points 99 Alaska Republican primary 100 Party Candidate Votes Republican Dan Sullivan incumbent 65 257 100 00Total votes 65 257 100 00Alaska Democratic Libertarian Independence primary 100 Party Candidate Votes Independent Al Gross 50 047 79 87Democratic Edgar Blatchford 5 463 8 72Independence John Howe 4 165 6 65Independent Christopher Cumings 2 989 4 77Total votes 62 664 100 00Alaska general election 101 Party Candidate Votes Republican Dan Sullivan incumbent 191 112 53 90 5 94Independent Al Gross 146 068 41 19 4 64Independence John Howe 16 806 4 74 1 02Write in 601 0 17 0 32Total votes 354 587 100 00 Republican holdArizona special editArizona special election nbsp 20162022 nbsp nbsp Nominee Mark Kelly Martha McSallyParty Democratic RepublicanPopular vote 1 716 467 1 637 661Percentage 51 2 48 8 nbsp County resultsKelly 50 60 60 70 70 80 McSally 50 60 60 70 70 80 U S senator before electionMartha McSallyRepublican Elected U S senator Mark KellyDemocraticMain article 2020 United States Senate special election in Arizona See also List of United States senators from Arizona and 2020 United States House of Representatives elections in Arizona Six term Republican John McCain was re elected in 2016 but died in office on August 25 2018 after a battle with brain cancer 102 Republican governor Doug Ducey appointed former senator Jon Kyl to fill the seat temporarily 103 After Kyl stepped down at the end of the year Ducey appointed outgoing U S Representative Martha McSally to replace him after she lost the election to the other Arizona senate seat 104 McSally ran in the 2020 special election to fill the remaining two years of the term 105 losing to Democrat Mark Kelly a former astronaut Once a solidly Republican state Arizona trended more purple in the late 2010s Incumbent Republican Martha McSally was appointed to the late John McCain s seat two months after losing the 2018 Arizona U S Senate election to Democrat Kyrsten Sinema Her Democratic opponent astronaut Mark Kelly raised significantly more money and generally led her by 5 to 15 points in the polling McSally also suffered from low approval ratings due to her strong allegiance to Trump who was unpopular in Arizona despite having won the state by 3 5 points in 2016 106 Arizona Republican primary 107 Party Candidate Votes Republican Martha McSally incumbent 551 119 75 20Republican Daniel McCarthy 181 551 24 77Write in 210 0 03Total votes 732 880 100 00Arizona Democratic primary 107 Party Candidate Votes Democratic Mark Kelly 665 620 99 93Write in 451 0 07Total votes 666 071 100 00Arizona special election 108 Party Candidate Votes Democratic Mark Kelly 1 716 467 51 16 10 41Republican Martha McSally incumbent 1 637 661 48 81 4 90Write in 1 189 0 03 0 03Total votes 3 355 317 100 00 Democratic gain from RepublicanArkansas editArkansas election nbsp 20142026 nbsp nbsp Nominee Tom Cotton Ricky Dale Harrington Jr Party Republican LibertarianPopular vote 793 871 399 390Percentage 66 5 33 5 nbsp County results Cotton 50 60 60 70 70 80 80 90 Harrington 50 60 U S senator before electionTom CottonRepublican Elected U S senator Tom CottonRepublicanMain article 2020 United States Senate election in Arkansas See also List of United States senators from Arkansas and 2020 United States House of Representatives elections in Arkansas One term Republican Tom Cotton was elected in 2014 after serving two years in the United States House of Representatives defeating incumbent Democratic senator Mark Pryor by a comfortable margin Cotton was re elected to a second term by a 33 point margin defeating Libertarian Ricky Dale Harrington Jr 109 110 111 Joshua Mahony a non profit executive and 2018 Democratic nominee for Congress in Arkansas s 3rd congressional district filed to run for the Democratic nomination 112 but dropped out just after the filing deadline 113 No other Democrats filed within the filing deadline Progressive activist Dan Whitfield ran as an independent but suspended his campaign on October 1 2020 after failing to qualify for the ballot 114 Arkansas general election 115 Party Candidate Votes Republican Tom Cotton incumbent 793 871 66 53 10 03Libertarian Ricky Dale Harrington Jr 399 390 33 47 31 44Total votes 1 193 261 100 00 Republican holdColorado editColorado election nbsp 20142026 nbsp nbsp Nominee John Hickenlooper Cory GardnerParty Democratic RepublicanPopular vote 1 731 114 1 429 492Percentage 53 5 44 2 nbsp County resultsHickenlooper 40 50 50 60 60 70 70 80 Gardner 40 50 50 60 60 70 70 80 80 90 U S senator before electionCory GardnerRepublican Elected U S senator John HickenlooperDemocraticMain article 2020 United States Senate election in Colorado See also List of United States senators from Colorado and 2020 United States House of Representatives elections in Colorado One term Republican Cory Gardner was elected in 2014 after serving four years in the United States House of Representatives narrowly defeating one term Democrat Mark Udall Gardner sought a second term but lost to Democrat John Hickenlooper by 9 3 percentage points 116 Hickenlooper is a popular former governor of Colorado and led Gardner by as much as 20 percentage points in polls with most pundits considering him a heavy favorite Gardner was Colorado s only Republican statewide officeholder and the once purple state has trended increasingly Democratic since his narrow win in 2014 Gardner also had low approval ratings due to his strong allegiance to Trump who lost Colorado in 2016 to Hillary Clinton by 4 9 and in 2020 to Joe Biden by 13 5 117 118 Hickenlooper also raised significantly more money than Gardner 119 Colorado Republican primary 120 Party Candidate Votes Republican Cory Gardner incumbent 554 806 100 00Total votes 554 806 100 00Colorado Democratic primary 121 Party Candidate Votes Democratic John Hickenlooper 585 826 58 65Democratic Andrew Romanoff 412 955 41 35Total votes 998 781 100 00Colorado general election 122 Party Candidate Votes Democratic John Hickenlooper 1 731 114 53 50 7 24Republican Cory Gardner incumbent 1 429 492 44 18 4 03Libertarian Raymon Doane 56 262 1 74 0 85Approval Voting Daniel Doyle 9 820 0 30 N AUnity Stephen Evans 8 971 0 28 0 04Total votes 3 235 659 100 00 Democratic gain from RepublicanDelaware editDelaware election nbsp 20142026 nbsp nbsp Nominee Chris Coons Lauren WitzkeParty Democratic RepublicanPopular vote 291 804 186 054Percentage 59 4 37 9 nbsp County resultsCoons 50 60 60 70 Witzke 50 60 U S senator before electionChris CoonsDemocratic Elected U S senator Chris CoonsDemocraticMain article 2020 United States Senate election in Delaware See also List of United States senators from Delaware and 2020 United States House of Representatives election in Delaware One term Democrat Chris Coons was re elected in 2014 he first took office after winning a 2010 special election which occurred after long time senator Joe Biden resigned to become vice president of the United States Biden also won the 2020 presidential election and became president He faced an unsuccessful primary challenge from technology executive Jessica Scarane Conservative activist Lauren Witzke and attorney Jim DeMartino ran for the Republican nomination The Delaware primary was held on September 15 2020 123 Delaware Democratic primary 124 Party Candidate Votes Democratic Chris Coons incumbent 87 332 72 85Democratic Jessica Scarane 32 547 27 15Total votes 119 879 100 00Republican primary results 124 Party Candidate Votes Republican Lauren Witzke 30 702 56 89Republican James DeMartino 23 266 43 11Total votes 53 968 100 00Delaware general election 125 Party Candidate Votes Democratic Chris Coons incumbent 291 804 59 44 3 61Republican Lauren Witzke 186 054 37 90 4 33Independent Mark Turley 7 833 1 59 N ALibertarian Nadine Frost 5 244 1 07 N ATotal votes 490 935 100 00 Democratic holdGeorgia editSee also List of United States senators from Georgia and 2020 United States House of Representatives elections in Georgia Due to Republican senator Johnny Isakson s resignation from office for health reasons in 2019 both of Georgia s Senate seats were up for election in November 2020 126 The state had tilted Republican in Senate races since the mid 1990s but increased support for Democrats in populous suburbs has made office elections more competitive a close governor s race multiple close U S House races and many other close local office races resulted in Democratic gains in 2018 elections Both the regular and special election were considered highly competitive toss ups 127 Both of these elections received national attention as if Republicans won at least one of these seats they would maintain a Senate majority but if the Democrats won both the Senate would be split 50 50 with Vice President Kamala Harris breaking the tie Georgia regular edit 2020 21 United States Senate election in Georgia nbsp 2014 November 3 2020 first round January 5 2021 runoff 2026 Turnout65 4 nbsp first round 61 5 nbsp runoff nbsp nbsp Candidate Jon Ossoff David PerdueParty Democratic RepublicanFirst round 2 374 51947 95 2 462 61749 73 Runoff 2 269 92350 61 2 214 97949 39 nbsp First round county results nbsp Runoff county resultsCounty resultsOssoff 50 60 60 70 70 80 80 90 Perdue 40 50 50 60 60 70 70 80 80 90 gt 90 U S senator before electionDavid PerdueRepublican Elected U S Senator Jon OssoffDemocraticMain article 2020 21 United States Senate election in Georgia One term Republican David Perdue was elected in 2014 and sought a second term 128 Jon Ossoff a former congressional candidate documentary film producer and investigative journalist defeated former Columbus mayor Teresa Tomlinson and 2018 lieutenant governor nominee Sarah Riggs Amico in the Democratic primary to secure nomination 129 130 He faced incumbent Republican David Perdue in the November 3 election In the November election no candidate received 50 or more of the total vote per Georgia law the election advanced to a run off between the top two finishers Ossoff and Perdue on January 5 2021 Ossoff was projected the winner on January 6 131 and Perdue conceded on January 8 132 Georgia Republican primary 133 Party Candidate Votes Republican David Perdue incumbent 992 555 100 00Total votes 992 555 100 00Georgia Democratic primary 134 Party Candidate Votes Democratic Jon Ossoff 626 819 52 82Democratic Teresa Tomlinson 187 416 15 79Democratic Sarah Riggs Amico 139 574 11 76Democratic Maya Dillard Smith 105 000 8 85Democratic James Knox 49 452 4 17Democratic Marckeith DeJesus 45 936 3 87Democratic Tricia Carpenter McCracken 32 463 2 74Total votes 1 186 660 100 00Georgia general election 89 Party Candidate Votes Republican David Perdue incumbent 2 462 617 49 73 3 16Democratic Jon Ossoff 2 374 519 47 95 2 74Libertarian Shane T Hazel 115 039 2 32 0 42Total votes 4 952 175 100 00 Georgia general election runoff 135 Party Candidate Votes Democratic Jon Ossoff 2 269 923 50 61 5 40Republican David Perdue incumbent 2 214 979 49 39 3 50Total votes 4 484 902 100 00 Democratic gain from Republican Georgia special edit 2020 21 United States Senate special election in Georgia nbsp 2016 November 3 2020 first round January 5 2021 runoff 2022 Turnout65 3 nbsp first round 59 7 nbsp runoff nbsp nbsp Candidate Raphael Warnock Kelly LoefflerParty Democratic RepublicanFirst round 1 617 03532 90 1 273 21425 91 Runoff 2 289 11351 04 2 195 84148 96 nbsp nbsp Candidate Doug Collins Deborah JacksonParty Republican DemocraticFirst round 980 45419 95 324 1186 59 Runoff Eliminated Eliminated nbsp First round county results nbsp Runoff county resultsWarnock 20 30 30 40 40 50 50 60 60 70 70 80 80 90 Loeffler 20 30 30 40 40 50 50 60 60 70 70 80 80 90 gt 90 Collins 20 30 30 40 40 50 50 60 U S senator before electionKelly LoefflerRepublican Elected U S Senator Raphael WarnockDemocratic Main article 2020 21 United States Senate special election in Georgia Three term senator Johnny Isakson announced on August 28 2019 that he would resign from the Senate on December 31 2019 citing health concerns 136 Georgia governor Brian Kemp appointed Republican Kelly Loeffler to replace Isakson until a special election could be held Loeffler took office on January 6 2020 and competed in the November 2020 election to retain her seat 137 Other Republicans who ran for the seat included Wayne Johnson former chief operating officer of the Office of Federal Student Aid 138 and four term U S representative Doug Collins 139 A jungle primary was held November 3 2020 but no candidate won more than 50 of the vote so a run off election between the top two finishers Loeffler and Democratic challenger Raphael Warnock was held on January 5 2021 140 Warnock defeated Loeffler who initially refused to concede and vowed to challenge the outcome 141 but conceded on January 7 after the storming of the U S Capitol 142 Georgia special election 143 Party Candidate Votes Democratic Raphael Warnock 1 617 035 32 90Republican Kelly Loeffler incumbent 1 273 214 25 91Republican Doug Collins 980 454 19 95Democratic Deborah Jackson 324 118 6 59Democratic Matt Lieberman 136 021 2 77Democratic Tamara Johnson Shealey 106 767 2 17Democratic Jamesia James 94 406 1 92Republican Derrick Grayson 51 592 1 05Democratic Joy Felicia Slade 44 945 0 91Republican Annette Davis Jackson 44 335 0 90Republican Kandiss Taylor 40 349 0 82Republican Wayne Johnson withdrawn 36 176 0 74Libertarian Brian Slowinski 35 431 0 72Democratic Richard Dien Winfield 28 687 0 58Democratic Ed Tarver 26 333 0 54Independent Allen Buckley 17 954 0 36Green John Fortuin 15 293 0 31Independent Al Bartell 14 640 0 30Independent Valencia Stovall 13 318 0 27Independent Michael Todd Greene 13 293 0 27Total votes 4 914 361 100 00Georgia special election runoff 144 Party Candidate Votes Democratic Raphael Warnock 2 289 113 51 04 10 00Republican Kelly Loeffler incumbent 2 195 841 48 96 5 84Total votes 4 484 954 100 00 Democratic gain from RepublicanIdaho editIdaho election nbsp 20142026 nbsp nbsp Nominee Jim Risch Paulette JordanParty Republican DemocraticPopular vote 537 446 285 864Percentage 62 6 33 3 nbsp County resultsRisch 50 60 60 70 70 80 80 90 Jordan 50 60 60 70 U S senator before electionJim RischRepublican Elected U S senator Jim RischRepublicanMain article 2020 United States Senate election in Idaho See also List of United States senators from Idaho and 2020 United States House of Representatives elections in Idaho Two term republican Jim Risch successfully ran for a third term in 2020 defeating Democrat Paulette Jordan in a landslide Jordan is a former gubernatorial nominee and former Coeur d Alene Tribal Councilwoman Idaho Republican primary 145 Party Candidate Votes Republican Jim Risch incumbent 200 184 100 00Total votes 200 184 100 00Idaho Democratic primary 145 Party Candidate Votes Democratic Paulette Jordan 72 778 85 70Democratic James Vandermaas 12 145 14 30Total votes 84 923 100 00Idaho general election 146 Party Candidate Votes Republican Jim Risch incumbent 538 446 62 62 2 71Democratic Paulette Jordan 285 864 33 25 1 42Independent Natalie Fleming 25 329 2 95 N AConstitution Ray Writz 10 188 1 18 N ATotal votes 859 827 100 00 Republican holdIllinois editIllinois election nbsp 20142026 nbsp nbsp Nominee Dick Durbin Mark CurranParty Democratic RepublicanPopular vote 3 278 930 2 319 870Percentage 54 9 38 9 nbsp County resultsDurbin 40 50 50 60 60 70 70 80 Curran 40 50 50 60 60 70 70 80 80 90 U S senator before electionDick DurbinDemocratic Elected U S senator Dick DurbinDemocraticMain article 2020 United States Senate election in Illinois See also List of United States senators from Illinois and 2020 United States House of Representatives elections in Illinois Four term democrat and Senate minority whip Dick Durbin easily won a fifth term in office defeating Republican Mark Curran by a 16 point margin 147 Curran served as sheriff of Lake County from 2006 to 2018 and won the Republican primary with 41 55 of the vote 148 Antiwar activist Marilyn Jordan Lawlor 149 and state representative Anne Stava Murray 150 briefly challenged Durbin in the Democratic primary but both ended up withdrawing 151 152 2019 Chicago mayoral candidate Willie Wilson a businessman and perennial candidate ran as a member of the Willie Wilson Party with the backing of a handful of Chicago aldermen and the Chicago Police Union Illinois Democratic primary 153 Party Candidate Votes Democratic Dick Durbin incumbent 1 446 118 100 00Total votes 1 446 118 100 00Illinois Republican primary 153 Party Candidate Votes Republican Mark Curran 205 747 41 55Republican Peggy Hubbard 113 189 22 86Republican Robert Marshall 75 561 15 26Republican Tom Tarter 73 009 14 74Republican Casey Chlebek 27 655 5 58Write in 7 0 00Total votes 495 168 100 00Illinois general election 154 Party Candidate Votes Democratic Dick Durbin incumbent 3 278 930 54 93 1 38Republican Mark Curran 2 319 870 38 87 3 82Willie Wilson Willie Wilson 237 699 3 98 N ALibertarian Danny Malouf 75 673 1 27 2 49Green David Black 55 711 0 95 N AWrite in 18 0 00 0 00Total votes 5 967 901 100 00 Democratic holdIowa editIowa election nbsp 20142026 nbsp nbsp Nominee Joni Ernst Theresa GreenfieldParty Republican DemocraticPopular vote 864 997 754 859Percentage 51 7 45 2 nbsp County resultsErnst 40 50 50 60 60 70 70 80 80 90 Greenfield 40 50 50 60 60 70 U S senator before electionJoni ErnstRepublican Elected U S senator Joni ErnstRepublicanMain article 2020 United States Senate election in Iowa See also List of United States senators from Iowa and 2020 United States House of Representatives elections in Iowa One term republican Joni Ernst first elected to the Senate in 2014 won a second term in office defeating Democrat Theresa Greenfield 155 Greenfield won the Democratic nomination defeating former vice admiral Michael T Franken attorney Kimberly Graham and businessman Eddie Mauro in the primary Ernst s popularity had dropped in polls and many considered this seat a possible Democratic pick up but Ernst was re elected by a larger than expected 6 5 points Iowa Republican primary 156 Party Candidate Votes Republican Joni Ernst incumbent 226 589 98 64Write in 3 132 1 36Total votes 229 721 100 00Democratic primary results 156 Party Candidate Votes Democratic Theresa Greenfield 132 001 47 71Democratic Michael T Franken 68 851 24 88Democratic Kimberly Graham 41 554 15 02Democratic Eddie Mauro 30 400 10 99Democratic Cal Woods withdrawn 3 372 1 21Write in 514 0 19Total votes 276 692 100 00Iowa general election 157 Party Candidate Votes Republican Joni Ernst incumbent 864 997 51 74 0 36Democratic Theresa Greenfield 754 859 45 15 1 39Libertarian Rick Stewart 36 961 2 21 1 48Independent Suzanne Herzog 13 800 0 83 N AWrite in 1 211 0 07 0 03Total votes 1 671 828 100 00 Republican holdKansas editKansas election nbsp 20142026 nbsp nbsp Nominee Roger Marshall Barbara BollierParty Republican DemocraticPopular vote 727 962 571 530Percentage 53 2 41 8 nbsp County resultsMarshall 50 60 60 70 70 80 80 90 gt 90 Bollier 40 50 50 60 60 70 U S senator before electionPat RobertsRepublican Elected U S senator Roger MarshallRepublicanMain article 2020 United States Senate election in Kansas See also List of United States senators from Kansas and 2020 United States House of Representatives elections in Kansas Four term Republican Pat Roberts was re elected in 2014 with 53 15 of the vote and announced on January 4 2019 that he would not be running for re election in 2020 In the Republican primary United States representative Roger Marshall defeated former Kansas secretary of state Kris Kobach 158 state Turnpike Authority chairman Dave Lindstrom 159 state senate president Susan Wagle and others 160 There was considerable speculation about a Senate bid by Mike Pompeo the United States secretary of state former director of the Central Intelligence Agency and former U S representative for Kansas s 4th congressional district but he did not run 161 162 Barbara Bollier a state senator and former Republican 163 defeated former congressional candidate Robert Tillman 164 for the Democratic nomination but lost to Marshall with a more than expected 11 4 point margin Kansas Republican primary 165 Party Candidate Votes Republican Roger Marshall 167 800 40 28Republican Kris Kobach 108 726 26 10Republican Bob Hamilton 77 952 18 71Republican Dave Lindstrom 27 451 6 59Republican Steve Roberts 8 141 1 95Republican Brian Matlock 7 083 1 70Republican Lance Berland 6 404 1 54Republican John Miller 4 431 1 06Republican Derek Ellis 3 970 0 95Republican Gabriel Robles 3 744 0 90Republican John Berman 861 0 21Total votes 416 563 100 00Kansas Democratic primary 165 Party Candidate Votes Democratic Barbara Bollier 168 759 85 34Democratic Robert Tillman 28 997 14 66Total votes 197 756 100 00Kansas general election 166 Party Candidate Votes Republican Roger Marshall 727 962 53 22 0 07Democratic Barbara Bollier 571 530 41 79 N ALibertarian Jason Buckley 68 263 4 99 0 67Total votes 1 367 755 100 00 Republican holdKentucky editKentucky election nbsp 20142026 nbsp nbsp Nominee Mitch McConnell Amy McGrathParty Republican DemocraticPopular vote 1 233 315 816 257Percentage 57 8 38 2 nbsp County resultsMcConnell 50 60 60 70 70 80 80 90 McGrath 50 60 U S senator before electionMitch McConnellRepublican Elected U S senator Mitch McConnellRepublicanMain article 2020 United States Senate election in Kentucky See also List of United States senators from Kentucky and 2020 United States House of Representatives elections in Kentucky Republican Mitch McConnell the Senate Majority Leader defeated Democrat Amy McGrath by 19 6 percentage points winning a 7th term in office Kentucky Republican primary 167 Party Candidate Votes Republican Mitch McConnell incumbent 342 660 82 80Republican Wesley Morgan 25 588 6 18Republican Louis Grider 13 771 3 33Republican Paul John Frangedakis 11 957 2 89Republican Neren James 10 693 2 58Republican Kenneth Lowndes 5 548 1 34Republican Nicholas Alsager 3 603 0 87Total votes 413 820 100 00Kentucky Democratic primary 167 Party Candidate Votes Democratic Amy McGrath 247 037 45 41Democratic Charles Booker 231 888 42 62Democratic Mike Broihier 27 175 4 99Democratic Mary Ann Tobin 11 108 2 04Democratic Maggie Joe Hilliard 6 224 1 14Democratic Andrew Maynard 5 974 1 10Democratic Bennie J Smith 5 040 0 93Democratic Jimmy Ausbrooks withdrawn 3 629 0 67Democratic Eric Rothmuller 2 995 0 55Democratic John R Sharpensteen 2 992 0 55Total votes 544 062 100 00Kentucky general election 168 Party Candidate Votes Republican Mitch McConnell incumbent 1 233 315 57 76 1 57Democratic Amy McGrath 816 257 38 23 2 49Libertarian Brad Barron 85 386 4 00 0 92Write in 99 0 01 0 00Total votes 2 135 057 100 00 Republican holdLouisiana editLouisiana election nbsp 20142026 nbsp nbsp nbsp Nominee Bill Cassidy Adrian Perkins Derrick EdwardsParty Republican Democratic DemocraticPopular vote 1 228 908 394 049 229 814Percentage 59 3 19 0 11 1 nbsp County resultsCassidy 30 40 40 50 50 60 60 70 70 80 80 90 Perkins 40 50 U S senator before electionBill CassidyRepublican Elected U S senator Bill CassidyRepublicanMain article 2020 United States Senate election in Louisiana See also List of United States senators from Louisiana and 2020 United States House of Representatives elections in Louisiana Republican Bill Cassidy won a second term in office defeating Democrat Adrian Perkins and others 169 A Louisiana primary a form of jungle primary was held on November 3 Had no candidate won a majority of the vote in the primary a run off election would have been held but Cassidy won in the first round Louisiana blanket primary 170 Party Candidate Votes Republican Bill Cassidy incumbent 1 228 908 59 32Democratic Adrian Perkins 394 049 19 02Democratic Derrick Edwards 229 814 11 09Democratic Antoine Pierce 55 710 2 69Republican Dustin Murphy 38 383 1 85Democratic Drew Knight 36 962 1 78Independent Beryl Billiot 17 362 0 84Independent John Paul Bourgeois 16 518 0 80Democratic Peter Wenstrup 14 454 0 70Libertarian Aaron Sigler 11 321 0 55Independent M V Vinny Mendoza 7 811 0 38Independent Melinda Mary Price 7 680 0 37Independent Jamar Montgomery 5 804 0 28Independent Reno Jean Daret III 3 954 0 19Independent Alexander Xan John 2 813 0 14Total votes 2 071 543 100 00Republican holdMaine editMaine election nbsp 20142026 nbsp nbsp Nominee Susan Collins Sara GideonParty Republican DemocraticPopular vote 417 645 ag 347 223 ag Percentage 50 98 42 39 nbsp County resultsCollins 40 50 50 60 60 70 Gideon 40 50 50 60 U S senator before electionSusan CollinsRepublican Elected U S senator Susan CollinsRepublicanMain article 2020 United States Senate election in Maine See also List of United States senators from Maine and 2020 United States House of Representatives elections in Maine Republican Susan Collins won a fifth term in office defeating Speaker of the Maine House of Representatives Sara Gideon 171 Gideon consistently led Collins in polls for almost the entire election cycle Collins is considered one of the most moderate Republicans in the Senate and had never faced a competitive re election campaign even though Maine leans Democratic But she faced growing unpopularity due to her increasingly conservative voting record and her votes to confirm Brett Kavanaugh to the Supreme Court and to acquit Trump in his impeachment trial Despite almost all polling and Gideon s formidable funding 172 Collins was re elected by a surprising 8 6 point margin Educator and activist Lisa Savage also ran as a candidate for the Green party 173 Maine Republican primary 174 Party Candidate Votes Republican Susan Collins incumbent 87 375 98 79Write in 1 073 1 21Total votes 88 448 100 00Maine Democratic primary 175 Party Candidate Votes Democratic Sara Gideon 116 264 71 47Democratic Betsy Sweet 37 327 22 94Democratic Bre Kidman 9 090 5 59Total votes 162 681 100 00Maine general election 176 Party Candidate Votes Republican Susan Collins incumbent 417 645 50 98 17 48Democratic Sara Gideon 347 223 42 39 10 89Independent Lisa Savage 40 579 4 95 N AIndependent Max Linn 13 508 1 65 N AWrite in 228 0 03 0 01Total votes 819 183 100 00 Republican holdMassachusetts editMassachusetts election nbsp 20142026 nbsp nbsp Nominee Ed Markey Kevin O ConnorParty Democratic RepublicanPopular vote 2 357 809 1 177 765Percentage 66 15 33 05 nbsp County results nbsp Municipality resultsCounty resultsMarkey 40 50 50 60 60 70 70 80 80 90 gt 90 O Connor 40 50 50 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