Polls · Kansas Senate
InsiderAdvantage , 10 October 2026
InsiderAdvantage has Adam Hamilton ahead of Roger Marshall by 1 points in Kansas Senate, 48% to 47%. It is this pollster's first poll of this race in our data.
| Race | Kansas Senate |
|---|---|
| Fieldwork | 9 October 2026 – 10 October 2026 |
| Stage | General election |
| Sample | 1,200 (likely voters) |
| Method | – |
| Release | release |
| In our average | Yes |
Main
| Adam Hamilton D | 48 | |
 Roger Marshall R |
47 | |
| Undecided | 5 |
Margin on the decided vote: D+1.1; after our adjustments D+2.3, which includes a move of 0.3 points to the Democrats with the national trend since the poll (↻).
Against the other polls
Against the median of the 2 other polls of this race taken within a week of it: Roger Marshall 47% against 43%.
Photo credits
1 official portrait from the Biographical Directory of the United States Congress (US government work, public domain): Roger Marshall.