Maine U.S. Senate Race 2026 — Odds
Susan Collins, the last New England Republican in Congress, faces her toughest test yet: term-limited Governor Janet Mills jumped into the race, giving Democrats their strongest possible recruit. Collins defied polls and markets to win comfortably in 2020, which keeps traders wary of writing her off. With ratings at Toss-up and prices hovering near even money, Maine is arguably the single most-traded Senate race of 2026.
Favorite: Democrat
Current standings
- 1Democrat67%
- 2Republican35%
- 3Person A—
- 4Person C—
- 5Person E—
- 6Person G—
- ·Others (7 outcomes)<1%
Probability over time — Democrat
Frequently asked questions
Who is favored to win the Maine Senate race in 2026?
Democrat leads on Polymarket at 67%. Forecasters rate the seat Toss-up.
Is Susan Collins running for re-election?
Susan Collins (R) is the incumbent in this Maine senate race. Susan Collins, the last New England Republican in Congress, faces her toughest test yet: term-limited Governor Janet Mills jumped into the race, giving Democrats their strongest possible recruit. Collins defied polls and markets to win comfortably in 2020, which keeps traders wary of writing her off. With ratings at Toss-up and prices hovering near even money, Maine is arguably the single most-traded Senate race of 2026.
Where can I trade the Maine senate odds?
These markets trade on Polymarket — use the Polymarket link on this page to see the live order book. GeoOdds tracks and charts the probabilities but does not take bets. Trading involves risk; 18+ only.
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