2024 United States Senate election in Maine

Not to be confused with 2024 Maine State Senate election.

2024 United States Senate election in Maine

←  2018 November 5, 2024 2030  →

Candidate Angus King Demi Kouzounas David Costello Party Independent Republican Democratic Popular vote 427,279 284,328 88,871 Percentage 52.06% 34.64% 10.83%

County results Municipality results Congressional district results King:     30–40%     40–50%     50–60%     60–70%     70–80%     >90% Kouzonunas:     40–50%     50–60%     60–70%     70–80%     80–90%     >90% Costello:     80–90% Tie:     40–50%     50%

The 2024 United States Senate election in Maine was held on November 5, 2024, to elect a member of the U.S. Senate to represent the state of Maine. Incumbent independent Senator Angus King won re-election to a third term, defeating Democratic nominee David Costello, Republican nominee Demitroula Kouzounas, and independent Jason Cherry. Primary elections took place on June 11, 2024. ^[1]

This election coincided with five referendum questions, including a referendum to change the state flag, as well as the presidential election, U.S. House elections for the state's two congressional districts, and various other state, county and local elections.

King won re-election to a third term in office with 52.06% of the vote.

Independents

Candidates

Declared

• Jason Cherry, attorney and former FBI agent ^[2]
• Angus King, incumbent U.S. senator ^[3]

Endorsements

Angus King

U.S. Senators

• Joe Manchin, former U.S. senator from West Virginia (2010–2025) (Independent; Democratic until 2024) ^[4]

Labor unions

• AFL-CIO ^[5]

Organizations

• American Israel Public Affairs Committee (AIPAC) ^[6]
• Feminist Majority PAC ^[7]
• International Franchise Association ^[8]
• Jewish Democratic Council of America ^[9]
• J Street PAC ^[10]
• League of Conservation Voters ^[11]
• Planned Parenthood Action Fund ^[12]
• Population Connection Action Fund ^[13]

Fundraising

Campaign finance reports as of July 24, 2024
Candidate	Raised	Spent	Cash on hand
Angus King (I)	$4,802,784	$2,069,527	$3,118,927
Jason Cherry (I)	$110,000	$95,478	$6,011
Source: Federal Election Commission [14]

Republican primary

Candidates

Nominee

• Demitroula "Demi" Kouzounas, former chair of the Maine Republican Party ^[15]

Endorsements

Demitroula "Demi" Kouzounas

U.S. representatives

• Bruce Poliquin, Former U.S. Representative (2015–2019) ^[16]

Governors

• Paul LePage, Former Governor of Maine (2011–2019) ^[17]

Fundraising

Campaign finance reports as of May 22, 2024
Candidate	Raised	Spent	Cash on hand
Demi Kouzounas (R)	$300,712 [a]	$55,731	$244,980
Source: Federal Election Commission [14]

Results

Republican primary results ^[18]

Party		Candidate	Votes	%
	Republican	Demi Kouzounas	58,832	100.0%
Total votes			58,832	100.0%

Democratic primary

Candidates

Nominee

• David Costello, consultant and former deputy secretary of the Maryland Department of the Environment ^[19]

Fundraising

Campaign finance reports as of May 22, 2024
Candidate	Raised	Spent	Cash on hand
David Costello (D)	$72,408 [b]	$13,302	$59,424
Source: Federal Election Commission [14]

Results

Democratic primary results ^[18]

Party		Candidate	Votes	%
	Democratic	David Costello	54,537	100.0%
Total votes			54,537	100.0%

General election

Predictions

Source	Ranking	As of
The Cook Political Report [20]	Solid I	November 9, 2023
Inside Elections [21]	Solid I	November 9, 2023
Sabato's Crystal Ball [22]	Safe I	September 5, 2024
Decision Desk HQ/The Hill [23]	Safe I	October 11, 2024
Elections Daily [24]	Safe I	May 4, 2023
CNalysis [25]	Solid I	November 21, 2023
RealClearPolitics [26]	Solid I	August 5, 2024
Split Ticket [27]	Safe I	October 23, 2024
538 [28]	Likely I	October 23, 2024

Fundraising

Campaign finance reports as of September 30, 2024
Candidate	Raised	Spent	Cash on hand
Angus King (I)	$4,802,784	$2,069,527	$3,118,927
Demi Kouzounas (R)	$503,998 [c]	$170,805	$333,192
David Costello (D)	$109,637 [d]	$24,063	$85,894
Jason Cherry (I)	$110,000 [e]	$95,478	$6,011
Source: Federal Election Commission [14]

Polling

Poll source	Date(s) administered	Sample size [f]	Margin of error	Angus King (I)	Demi Kouzounas (R)	David Costello (D)	Other	Undecided
University of New Hampshire [29]	October 29 - November 2, 2024	1,485 (LV)	± 2.4%	50%	35%	7%	1% [g]	6%
SurveyUSA [30] [A]	October 24–29, 2024	1,079 (LV)	± 3.6%	54%	28%	8%	3% [h]	8%
Pan Atlantic Research [31]	September 5–15, 2024	812 (LV)	± 3.5%	53%	23%	8%	1% [i]	16%
University of New Hampshire [32]	August 15–19, 2024	951 (LV)	± 3.2%	43%	33%	9%	4% [j]	12%
Digital Research [33]	April 8–30, 2024	609 (RV)	± 4.0%	57%	28%	12%	–	3%

Results

2024 United States Senate election in Maine ^[34]

Party		Candidate	Votes	%	±%
	Independent	Angus King (incumbent)	427,331	52.06%	−2.25
	Republican	Demi Kouzounas	284,338	34.64%	−0.59
	Democratic	David Costello	88,891	10.83%	+0.38
	Independent	Jason Cherry	20,222	2.46%	N/A
Total votes			820,782	100.00%	N/A
	Independent hold

Counties that flipped from Independent to Republican

• Washington (largest city: Calais)

By congressional district

King won both congressional districts, which both elected Democrats. ^[35]

District	King	Kouzounas	Costello	Representative
1st	55%	30%	12%	Chellie Pingree
2nd	49%	40%	9%	Jared Golden

Notes

1. $154,001 of this total was self-funded by Kouzounas
2. $50,000 of this total was self-funded by Costello
3. $314,001 of this total was self-funded by Kouzounas
4. $77,000 of this total was self-funded by Costello
5. $55,000 of this total was self-funded by Cherry
6. Key:
   A – all adults
   RV – registered voters
   LV – likely voters
   V – unclear
7. Cherry (I) with 1%
8. Cherry (I) with 3%
9. Cherry (I) with 1%
10. Cherry (I) with 3%; "Another candidate" with 1%

Partisan clients

1. Poll sponsored by Bangor Daily News and FairVote

References

1. "2024 State Primary Election Dates". www.ncsl.org. Retrieved May 13, 2023.
2. "Sen. Angus King facing third challenger for Senate seat". WGME-TV . May 22, 2024. Retrieved July 22, 2024.
3. Robinson, Steve (June 27, 2023). "Angus King, 79, Says He's Running for Re-Election in 2024". Maine Wire. Retrieved June 27, 2023.
4. Collins, Steve (June 27, 2024). "Sen. Joe Manchin donates to King, Golden reelection campaigns". Portland Press Herald . Retrieved October 30, 2024.
5. "'That's a big deal': Sen. Angus King, I-Maine, touts key labor endorsement". WCSH . September 23, 2024. Retrieved September 24, 2024.
6. "Support Pro-Israel Candidates". AIPAC PAC. Retrieved April 7, 2023.
7. "2024 – Feminist Majority PAC". feministmajoritypac.org. Retrieved February 9, 2024.
8. "IFA Endorses Congressional Candidates Ahead of June Primary Elections". www.franchise.org. June 3, 2024. Retrieved June 3, 2024.
9. "Jewish Dems: President Biden Stands with Israel". Jewish Democratic Council of America. Retrieved May 10, 2024.
10. "Angus King". JStreetPAC. Retrieved August 26, 2023.
11. "LCV Action Fund Announces First Round of Congressional Endorsements". League of Conservation Voters. Retrieved July 27, 2023.
12. "2024 Planned Parenthood Action Fund Endorsed Candidates". Planned Parenthood Action Fund . Retrieved November 6, 2023.
13. "2024 Endorsements". Population Connection Action Fund. Retrieved August 25, 2023.
14. "2024 Election United States Senate - Maine". fec.gov. Federal Election Commission . Retrieved October 15, 2024.
15. Shepherd, Michael (January 19, 2024). "Former Maine Republican Party chair will run against Angus King". Bangor Daily News . Retrieved January 19, 2024.
16. "Rep. Bruce Poliquin endorses Demi Kouzounas!". X . September 24, 2024. Retrieved November 28, 2024.
17. Kobin, Billy (August 28, 2024). "Paul LePage to host fundraiser for Angus King's Republican opponent". Bangor Daily News . Retrieved November 28, 2024.
18. "June 11, 2024 State Primary Election". Maine.gov.
19. Collins, Steve (April 12, 2023). "Brunswick Democrat is first to enter the 2024 U.S. Senate race in Maine". Portland Press Herald . Retrieved April 12, 2023.
20. "2024 Senate Race ratings". Cook Political Report. Retrieved January 25, 2023.
21. "Senate Ratings". Inside Elections. January 6, 2023. Retrieved January 10, 2023.
22. "2024 Senate". Sabato's Crystal Ball. January 24, 2023. Retrieved February 13, 2023.
23. "2024 Senate prediction map". elections2024.thehill.com/. The Hill. June 8, 2024. Retrieved June 8, 2024.
24. "Election Ratings". Elections Daily. August 1, 2023. Retrieved August 2, 2023.
25. "'24 Senate Forecast". CNalysis. Retrieved November 21, 2023.
26. "Battle for the Senate 2024". RealClearPolitics . Retrieved August 5, 2024.
27. "2024 Senate Forecast". Split Ticket. Retrieved October 23, 2024.
28. "2024 Election Forecast". FiveThirtyEight. Retrieved October 23, 2024.
29. University of New Hampshire
30. SurveyUSA
31. Pan Atlantic Research
32. University of New Hampshire
33. Digital Research
34. "United States Senator". Maine.gov. December 12, 2024. Retrieved December 12, 2024.
35. https://x.com/ME_Politics_/status/1862876610615009601

External links

Official campaign websites

• Jason Cherry (I) for Senate
• David Costello (D) for Senate
• Angus King (I) for Senate
• Demi Kouzounas (R) for Senate