Kansas Senate polling average
Kansas Senate: Monolith Average
Adam Hamilton (D) · Roger Marshall (R) · David Graham (L)
Monolith Average · nonpartisan polls
D+2.2
Adam Hamilton (D) 48.7% · Roger Marshall (R) 46.6%
3 pollsters
3 pollsters
Monolith Average (All Polls)
D+2.2
Adam Hamilton (D) 48.7% · Roger Marshall (R) 46.6%
3 pollsters
3 pollsters
Updated 2026-10-30 14:41 CT. Margin = first-listed candidate minus second; undecided voters are not allocated. Polls from the last 30 days; each pollster counts once (its latest poll); weights favor larger, newer polls. How we calculate this.
Monolith Average: daily margin since Oct. 1
Above the dashed line = first-listed candidate leads (positive margin); gaps = fewer than 2 pollsters that day.
Monolith Average (All Polls): daily margin since Oct. 1
Above the dashed line = first-listed candidate leads (positive margin); gaps = fewer than 2 pollsters that day.
Polls
| Pollster | Dates | Sample | Hamilton | Marshall | Other | Sponsor type | Used in | Source | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Emerson College | 2026-10-26 to 2026-10-28 | 800 LV | 49.5 | 47.1 | Graham 3.4 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text |
| CNN/SSRS | 2026-10-20 to 2026-10-26 | 838 LV | 49.0 | 45.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| The Washington Post/George Mason University Schar School of Policy and Government | 2026-10-22 to 2026-10-26 | 801 LV | 52.0 | 43.0 | Graham 4.0 | Nonpartisan | Superseded by newer poll | source | |
| InsiderAdvantage | 2026-10-13 to 2026-10-14 | 1200 LV | 47.0 | 48.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text |
Spot an error? Email [email protected]. Downloadable data files are coming soon.