Primary
Primary election: Tuesday, August 4, 2026
Full calendar and every race: Kansas primary guide
Race Overview
General Election Polling Trend
PollingSource average — trailing average of all polls from the last 90 days.
Candidates
General Election Polling Average
Average reflects all polls from the last 90 days; table shows the most recent 30 days or the newest 3 polls, whichever is more — subscribe for the full history. How accurate is each pollster? →
| Pollster | Date | Sample | MoE | Dem | Rep |
|---|---|---|---|---|---|
| Tavern Research (D) partisan·D | 2026-04-27 | 500 LV | ±4.38 | Adam Hamilton 45.00% | Roger Marshall 49.00% |
| GQR (D) partisan·D | 2026-04-27 | 500 LV | ±4.38 | Patrick Schmidt 45.00% | Roger Marshall 49.00% |
Questions About This Race
Who is winning the 2026 Kansas Senate race?
Roger Marshall leads Adam Hamilton 49% to 45% in the PollingSource polling average — a R+4.0 margin based on 2 polls from the last 90 days.
Is the 2026 Kansas Senate race competitive?
Yes — the PollingSource polling average rates it Lean R: Republicans are favored, but the race is competitive.
What does the latest poll of the 2026 Kansas Senate race say?
The most recent public poll, from Tavern Research (D) (completed April 27, 2026), found Adam Hamilton (D) at 45% and Roger Marshall (R) at 49%.
When is the 2026 Kansas Senate race decided?
Election Day is Tuesday, November 3, 2026.
How is the PollingSource average calculated?
The PollingSource average is the unweighted mean of every scientific public poll of the race from the last 90 days — we do not exclude pollsters. Each race page lists the individual polls behind the average with pollster, field dates, sample size, and margin of error. Full details: pollingsource.com/methodology.
Race Notes
First-term Class II incumbent (Moran holds the other seat, up 2028)
Independent Expenditures Updated 4 hours ago
Top Spenders
- THE 1861 INITIATIVE $957,986
- SENATE CONSERVATIVES FUND $188,039
- SENATE CONSERVATIVES ACTION $34,679
- WAY BACK PAC $9,692
Full outside-spending research — every committee, every race →