Kansas
Roger Marshall (R)
D
Adam Hamilton
DEM
R
Roger MarshallINC
REP · U.S. Senator since 2021
Latest poll: Emerson, September 18, 2026: D 45 · R 43 · Sabato: Lean R
Kansas Senate 2026
Adam Hamilton vs. Roger Marshall · Roger Marshall (R)
Cook: Lean RSabato: Lean R
Election results · unofficial
All live results →Race insight · September 30, 2026
Adam Hamilton (D) leads Roger Marshall (R) by 2.0 points in the average of 1 public poll from the 14 days ending September 18, 2026. That lead is within the typical margin of error, so the race is statistically close. The Cook Political Report rates it Lean R; Sabato's Crystal Ball rates it Lean R.
Poll trend
Head-to-head
Candidates
Lean R
Candidate background
Full candidate biographies, primary results and campaign history: Kansas Senate election on Wikipedia ↗. Official candidate lists and certified results come from the Kansas election office via vote.gov.
Every poll
| Pollster | End date | Adam Hamilton (D) | Roger Marshall (R) | Margin |
|---|---|---|---|---|
| Emerson | September 18, 2026 | 45 | 43 | D +2 |
Margins under about 4 points are within typical sampling error. See our methodology.
Voting in Kansas
Check registration deadlines and early or mail voting in Kansas on vote.gov. See all Kansas races.
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