State of the OddsLive prediction-market odds, side by side

Maine Senate Race Odds 2026

Prices as of 2026-09-19 18:30 UTC.

Kalshi has Troy Jackson at 68%; Polymarket has Troy Jackson (D) at 70%.

Candidate / partyKalshiPolymarketGap
Troy Jackson D68%
bid 67¢ · ask 68¢ · OI $1.1M
70%
vol $860k
-1 pts
Susan Collins R34%
bid 33¢ · ask 34¢ · OI $1.7M
30%
vol $572k
+4 pts
Maine Senate 2026 — Kalshi · Troy Jackson · Polymarket · Troy Jackson (D) · last 90 days
0%25%50%75%100%JulAugSepPolymarket · Troy Jackson (D) 70%Kalshi · Troy Jackson 68%

How the Kalshi market resolves

If a representative of the Democratic party is sworn in as a Senator of Maine for the term beginning in 2027, then the market resolves to Yes.

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