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2026 United States Senate election in Maine

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2026 United States Senate election in Maine

← 2020 November 3, 2026 (2026-11-03) 2032 →
 
Party Republican Democratic

Incumbent U.S. senator

Susan Collins
Republican



The 2026 United States Senate election in Maine will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of Maine. Incumbent Republican Senator Susan Collins is running for re-election to a sixth term in office. This will be the only Republican-held Senate seat up for election in 2026 in a state that Kamala Harris won in the 2024 presidential election. This election will coincide with U.S. House elections for Maine's two congressional districts, a gubernatorial election, and various other state, county and local elections.

Background

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Maine is considered to be a moderately blue state at the federal level, with Kamala Harris carrying Maine by roughly 7 percentage points in the 2024 presidential election(though Donald Trump won the electoral vote from Maine's 2nd congressional district). Democrats also control the governorship, the state legislature, and both seats in Maine's U.S. House congressional delegation.[1]

Collins was first elected in 1996 and was re-elected in four subsequent elections, significantly outperforming other Republicans in the state. In 2020, despite almost all polls and analysts predicting that she would lose her re-election bid, Collins unexpectedly defeated Democratic nominee Sara Gideon by about 8 percentage points. Democratic presidential nominee Joe Biden carried Maine by about 9 percentage points on the same ballot.[2]

As the only seat up held by a Republican in a state that voted for Kamala Harris in 2024 and Collins' record of overperformance despite the state's Democratic lean, Maine is considered a key Senate battleground in 2026. This Senate seat has been held by Republicans since 1979.[3]

Republican primary

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Collins was first elected in 1996. With Collins being a moderate and potential swing vote, she could face a more conservative primary opponent.[4]

Candidates

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Declared

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  • Susan Collins, incumbent U.S. senator (1997–present)[5]
  • Dan Smeriglio, former police officer[6]

Democratic primary

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Candidates

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Potential

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Independent and third party candidates

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Candidates

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Filed paperwork

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General election

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Predictions

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Source Ranking As of
Inside Elections[10] Battleground January 17, 2025
The Cook Political Report[11] Lean R February 11, 2025
Sabato's Crystal Ball[12] Lean R February 13, 2025

References

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  1. ^ "Maine Democrats say they won enough seats to control state Senate". spectrumlocalnews.com. Retrieved December 7, 2024.
  2. ^ Everett, Burgess (November 4, 2020). "Collins wins again in Maine, boosting Senate GOP". POLITICO. Retrieved December 7, 2024.
  3. ^ a b c d Stanton, Andrew (November 14, 2024). "Susan Collins' Reelection Plan Throws a Wrench in Democrats' Senate Hopes". Newsweek. Retrieved November 14, 2024.
  4. ^ Bolton, Alexander (November 14, 2024). "Tuberville: 'We're gonna try to get you out of the Senate if you vote against Trump". The Hill. Retrieved November 15, 2024.
  5. ^ Shepherd, Michael (November 15, 2024). "Susan Collins plans to run for historic 6th term in 2026". Piscataquis Observer. Retrieved November 15, 2024.
  6. ^ Collins, Steve (February 18, 2025). "A Frenchville Republican challenges Susan Collins". Sun Journal. Retrieved February 19, 2025.
  7. ^ Billings, Randy (November 29, 2024). "Gov. Mills doesn't rule out challenging Susan Collins for U.S. Senate in 2026". Press Herald. Retrieved December 2, 2024.
  8. ^ Solender, Andrew (November 27, 2024). "Scoop: A huge wave of House members is eyeing runs for other offices in 2026". Axios. Retrieved November 28, 2024.
  9. ^ Shepherd, Michael (February 13, 2025). "Former Elon Musk employee enters 2026 race against Susan Collins". Bangor Daily News. Retrieved February 13, 2025.
  10. ^ "Senate Ratings". Inside Elections. Retrieved January 14, 2025.
  11. ^ "2026 CPR Senate Race Ratings". Cook Political Report. Retrieved February 11, 2025.
  12. ^ "2026 Senate ratings". Sabato's Crystal Ball. Retrieved February 13, 2025.