Maine
Susan Collins (R)
D
Troy Jackson
DEM · Former Maine Senate President
R
Susan CollinsINC
REP · U.S. Senator since 1997
Latest poll: InsiderAdvantage, September 26, 2026: D 46 · R 46 · Sabato: Lean D
Maine Senate 2026
Troy Jackson vs. Susan Collins · Susan Collins (R)
Cook: Toss-upSabato: Lean D
Election results · unofficial
All live results →Race insight · September 30, 2026
The U.S. Senate race in Maine is effectively tied in the average of 4 public polls from the 14 days ending September 26, 2026. The Cook Political Report rates it Toss-up; Sabato's Crystal Ball rates it Lean D.
Poll trend
Head-to-head
Candidates
Toss-up
Campaign news · summaries in our words
- Maine Senate
Jackson agrees to four October debates with Collins; Collins's campaign says it accepted four debates with the same hosts. Early voting starts Oct. 5. Portland Press Herald ↗
Candidate background
Full candidate biographies, primary results and campaign history: Maine Senate election on Wikipedia ↗. Official candidate lists and certified results come from the Maine election office via vote.gov.
Every poll
| Pollster | End date | Troy Jackson (D) | Susan Collins (R) | Margin |
|---|---|---|---|---|
| InsiderAdvantage | September 26, 2026 | 46 | 46 | Tie |
| NYT/Siena | September 24, 2026 | 46 | 49 | R +3 |
| UNH | September 24, 2026 | 51 | 47 | D +4 |
| Quantus Insights | September 16, 2026 | 46 | 47 | R +1 |
Margins under about 4 points are within typical sampling error. See our methodology.
Voting in Maine
Check registration deadlines and early or mail voting in Maine on vote.gov. See all Maine races.
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