U.S. Senate
DAdam Hamilton
47.0%
average of 3 polls
RRoger Marshall
44.7%
average of 3 polls
Difference: 2.3 points
Photos: Roger Marshall, U.S. Senate Photographic Studio, Public domain. Candidates without a freely licensed photo are shown by initials.
Plain average D+2.3, corrected D+2.2 (±3.4) · 3 pollsters, fieldwork through 2026-10-14within the margin of error
| Pollster | Fieldwork | Sample | Result | Margin | ± MOE |
|---|---|---|---|---|---|
| InsiderAdvantage(R-aligned) | 2026-10-13 to 2026-10-14 | 1,200 LV | Roger Marshall (R) 48; Adam Hamilton (D) 47; David Graham (OTH) 3; Undecided (UND) 2 | R+1.0 | 5.5 |
| InsiderAdvantage | 2026-10-09 to 2026-10-10 | 1,200 LV | Roger Marshall (R) 47; Adam Hamilton (D) 48; Undecided (UND) 5 | D+1.0 | 5.5 |
| GBAO(D-aligned) | 2026-09-30 to 2026-10-04 | 600 LV | Roger Marshall (R) 41; Adam Hamilton (D) 46; David Graham (OTH) 7 | D+5.0 | 7.5 |
| YouGov | 2026-09-24 to 2026-10-04 | 2,255 LV | Roger Marshall (R) 45; Adam Hamilton (D) 48; Undecided (UND) 5 | D+3.0 | 4.0 |