DEMOCRATIC
US Marine Corps
2026 Maine Senate Forecast
2026 Senate
Republican
REPUBLICAN
US Senate (R-ME)
1997 – Present
2026 Maine Senate Forecast
- Year
- 2026
- Race
- Senate
- State
- Maine
- Democratic candidate
- Graham Platner
- Republican candidate
- Susan Collins
- Incumbent / open seat
- Susan Collins
- Forecast rating
- Tilt R
- Projected vote
- 49.7% D / 50.4% R
- Projected margin
- R +0.7
- Forecast odds
- 46.1% D / 53.9% R
- Forecast last updated
- 12:00 AM on June 20, 2026
- Polling average
- 46.7% D / 45.1% R
- Polling average margin
- D +1.5
- Polling last updated
- 12:00 AM on June 20, 2026
- Polls included
- 21
- Latest poll
- Wick Insights — June 14, 2026