The Constituency
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Senate · Kansas
HAMILTON, ADAM vs. MARSHALL, ROGER W (Incumbent)
73%Republican favored
Lean
State need31 / 100
State delivery25 / 100
State lean (Dem 2-way, 2022+2024)42%
Expected Dem share, 202645%
Latest Polls
Public polls of this race, entered from each pollster's own release. Shown for reference. They are not an input to the forecast above, which is built from state partisan lean, incumbency, fundraising and the national generic ballot (expected Dem share 45%, two-way).
New York Times/SienaSep 21 – Oct 1, 2026 LVLibertarian David Graham 3%
Adam Hamilton (D) 45% · Roger Marshall (R) 45%Tied · Dem two-way 50%
Leading Candidates
The two major-party nominees, real FEC receipts, current 2026 cycle. Third-party and primary-challenger filings aren't listed here — see the note in this project's methodology on why that data isn't reliably scoped to this specific race.
HAMILTON, ADAM (Democratic)$19,175,044 raised
MARSHALL, ROGER W (Republican)Incumbent$5,350,064 raised
Forecast as of November 1, 2026.
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