Maine Senate 2026 General Election
The Maine Senate general election is on November 3, 2026. The model sees a close race: Republican Susan Collins edges Democrat Graham Platner, 53% to 47%. Susan Collins is the incumbent and Graham Platner leads the field in reported fundraising and has the most tracked endorsements. Public polling is available for this race and feeds the forecast alongside fundraising, endorsements, and historical results.
Current win probabilities
- Susan Collins (incumbent) — 53%
- Graham Platner — 47%
Probabilities update daily from polls, fundraising, endorsements, and historical results.