Maine Senate 2026

The chance this seat goes Republican in November, across every listed contract, as a 0–100 chance the Republican wins.

LiveHeld by Republicans · projected flip to Dem·$365K traded / 24h·17 contracts·7 exchanges·Margin rank 3 of 35
SEAT PMI · 0–100 · CHANCE REPUBLICANS WIN
39.1Lean D · ▼ 2.8 14d
DEMOCRATEVENREPUBLICAN
Republicans win
39.1
enters as 39.1
Democrats win
60.9
enters as 100 − 60.9 = 39.1

Both legs are aggregated. The Democratic leg is converted as 100 − p, so this seat reads on the same scale as every other.

Control of the Senate

Does Maine decide the Senate?

Not by itself. It is inside the Republicans’ path.
Republicans need 4 of the 7 contested seats; Maine is priced as their 3rd most likely win. The seat that tips control is Texas at 33.8.
MOST LIKELY DEMOCRATICSEAT PMI
Alaska27.8Michigan31.0Ohio31.8TexasTIPS CONTROL33.8
Maine39.1
Iowa58.8Kansas59.9
MOST LIKELY REPUBLICAN
Democrats need 51 seats, Republicans 50 (the Republican Vice President breaks ties). Democrats count from the top, Republicans from the bottom.
Full Senate picture
Contracts behind this reading · 6 of 17

Sorted by weight

Will Republicans win the Senate race in Maine? - Susan Collins40.0Kalshi ↗ · Republican leg · enters as 40.0weight 39.5%Will the Republicans win the Maine Senate race in 2026?38.5Polymarket ↗ · Republican leg · enters as 38.5weight 29.2%Will the Democrats win the Maine Senate race in 2026?61.5Polymarket ↗ · Democratic leg · enters as 38.5weight 14.8%Will Democratics win the Senate race in Maine? - Troy Jackson61.0Kalshi ↗ · Democratic leg · enters as 39.0weight 10.7%Will Susan Collins win re-election to Maine's Senate seat in 2026?41.0Manifold ◦ ↗ · Republican leg · enters as 41.0weight 3.2%Troy Jackson wins 2026 US Senate election in Maine?62.0Manifold ◦ ↗ · Democratic leg · enters as 38.0weight 2.5%
Show all 17 contracts
Weights are 24h liquidity share · reconciled reading 39.1 · ◦ play money · rows open on the exchange
Other Maine races this cycle

Also on the ballot