2026 Midterm Election Prediction Markets
Live Kalshi prediction market odds for the 2026 U.S. midterm elections — House, Senate, and Governor primary races across all 50 states. Prices update in real time as traders buy and sell contracts on Kalshi, the CFTC-regulated prediction market exchange.
| Race | State | Leading Candidate | Market Odds | 24h Volume |
|---|---|---|---|---|
| Florida Republican Governor nominee? | In 2026 | - | 97% | $3.0M |
| Iowa Senate winner? | In 2026 | - | 54% | $533K |
| Florida Republican Governor primary: James Fishback vote percent | On Aug 18, 2026 | - | 100% | $237K |
| TX-15 House winner? | In 2026 | - | 59% | $222K |
| Texas Senate winner? | In 2026 | - | 49% | $153K |
| Michigan Senate winner? | In 2026 | - | 43% | $94K |
| North Carolina Senate winner? | In 2026 | - | 7% | $60K |
| South Carolina Republican Senate special primary: 1st place (1st round) | On Aug 11, 2026 | - | 99% | $47K |
| Michigan Democratic Senate primary margin of victory? | On Aug 4, 2026 | - | 99% | $44K |
| FL-06 Republican nominee? | FL-06 (R) | - | 97% | $41K |
| California Governor winner? (Person) | In 2026 | - | 0% | $40K |
| Ohio Senate winner? | In 2026 | - | 47% | $40K |
| Minnesota Senate Democratic primary: Angie Craig vote percent | Vote Percent - Angie Craig | - | 97% | $35K |
| WY-AL Republican nominee? | WY-AL (R) | - | 52% | $33K |
| New York Governor winner? | In 2026 | - | 94% | $32K |
| FL-25 Democratic nominee? | FL-25 (D) | - | 89% | $29K |
| Florida Republican Governor primary: Byron Donalds vote percent | Vote Percent - Byron Donalds | - | 87% | $25K |
| Minnesota Senate winner? | In 2026 | - | 10% | $25K |
| Minnesota Republican gubernatorial primary: Lisa Demuth vote percent | Vote Percent - Lisa Demuth | - | 99% | $24K |
| Montana Senate winner? | In 2026 | - | 90% | $16K |
| Oklahoma Republican Governor nominee? | In 2026 | - | 22% | $16K |
| Michigan Senate Democratic primary: 2nd place | On Aug 4, 2026 | - | 0% | $15K |
| Wisconsin Democratic gubernatorial primary: David Crowley vote percent | Vote Percent - David Crowley | - | 99% | $14K |
| Texas Governor winner? | In 2026 | - | 14% | $13K |
| Florida Republican governor primary: 2nd place | On Aug 18, 2026 | - | 66% | $13K |
| Ohio Governor winner? | In 2026 | - | 50% | $13K |
| FL-09 Republican nominee? | FL-09 (R) | - | 1% | $12K |
| FL-22 Republican nominee? | FL-22 (R) | - | 0% | $12K |
| Wyoming Republican Governor nominee? | In 2026 | - | 1% | $11K |
| Connecticut Democratic Governor primary: Ned Lamont vote percent | Vote Percent - Ned Lamont | - | 99% | $11K |
What Are 2026 Midterm Prediction Markets?
Prediction markets let traders stake real money on political outcomes, turning polling data, insider knowledge, and public sentiment into a single probability score. When you see 67% next to a candidate, the market collectively prices their probability of winning at that moment. FlowFrame aggregates every 2026 Kalshi election contract in one place, updated continuously throughout the primary season.
How to Read the Odds
Each market shows candidates ranked by market-implied probability. The leading probability percentage is derived from the best bid price on Kalshi's order book. The multiplier (e.g., 1.47x) is the implied payout if that candidate wins: a 68% favorite pays 1.47x; a 1% longshot pays 100x. Volume reflects cumulative dollars traded — higher volume indicates a more liquid, reliable signal.
Key Senate Races to Watch in 2026
The 2026 cycle puts 33 Senate seats in play. Historically competitive states like Arizona, Nevada, Pennsylvania, and Wisconsin are priced as toss-ups where small news events move prices sharply. See the most active senate contracts on the Kalshi markets page.
Governor Races and State-Level Markets
Gubernatorial elections matter beyond their own cycle — governors control redistricting and election administration, and are often the next cycle's Senate candidates. Kalshi lists governor contracts across states with competitive primaries.
How FlowFrame's View Is Different
Most political data sites show polling averages. FlowFrame shows where money is moving. Prediction markets update in real time — a debate gaffe, an indictment, or a leaked poll can move prices within minutes. Combined with FlowFrame's Mentions Hub (political speech transcript search) and the live Polymarket dashboard, you get a multi-signal view no single source provides.