Kansas 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 hold·$132K traded / 24h·12 contracts·6 exchanges·Margin rank 2 of 35
SEAT PMI · 0–100 · CHANCE REPUBLICANS WIN
59.7Toss-up · ▼ 2.5 14d
DEMOCRATEVENREPUBLICAN
Republicans win
59.7
enters as 59.7
Democrats win
40.3
enters as 100 − 40.3 = 59.7

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 Kansas decide the Senate?

Not by itself. It is inside the Republicans’ path.
Republicans need 4 of the 7 contested seats; Kansas is priced as their 1st most likely win. The seat that tips control is Texas at 34.4.
MOST LIKELY DEMOCRATICSEAT PMI
Alaska27.4Michigan31.5Ohio32.2TexasTIPS CONTROL34.4Maine40.0Iowa59.4
Kansas59.7
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 12

Sorted by weight

Will Republicans win the Senate race in Kansas? - Roger Marshall59.0Kalshi ↗ · Republican leg · enters as 59.0weight 38.4%Will the Democrats win the Kansas Senate race in 2026?38.5Polymarket ↗ · Democratic leg · enters as 61.5weight 25.8%Will Democratics win the Senate race in Kansas? - Adam Hamilton41.0Kalshi ↗ · Democratic leg · enters as 59.0weight 23.9%Will the Republicans win the Kansas Senate race in 2026?61.5Polymarket ↗ · Republican leg · enters as 61.5weight 11.8%Kansas US Senate Winner - Adam Hamilton43.0Gemini ↗ · Democratic leg · enters as 57.0weight 0.0%Kansas US Senate Winner - Roger Marshall67.0Gemini ↗ · Republican leg · enters as 67.0weight 0.0%
Show all 12 contracts
Weights are 24h liquidity share · reconciled reading 59.7 · rows open on the exchange
Other Kansas races this cycle

Also on the ballot