The Caucus +
Senate · Kansas Senate

Hamilton vs Marshall

General election · primary Aug 4 · general Nov 3, 2026

Dem Adam Hamilton (D)
Challenger
Raised $13.53M
VS
Rep Roger Marshall (R)
Incumbent
Raised $7.01M

The money

$37.61M in all, FEC through the most recent reports
Raised by the candidates
Democrats
$14.90M
across the Democratic field
Republicans
$7.01M
across the Republican field
Whole field
$21.90M
10 candidates
Spent by outside groups
Total
$15.71M
first arrived Feb 11
Against Democrats
$6.86M
of that total
For Democrats
$2.20M
of that total
On other candidates
$6.65M
for or against

How the state votes

Most recent first
2024 president R+16
2020 president R+15
2020 resultBollier vs Marshall R+11

Polling

12 polls of the current matchup
Average of the last three non-partisan polls
Hamilton 47.7 Marshall 46.0 D+1.7
PollsterDatesSample Hamilton MarshallMargin
InsiderAdvantage (R)Partisan Oct 14 1,200 LV 47.0 48.0 R+1
InsiderAdvantage (R)Partisan Oct 10 1,200 LV 48.0 47.0 D+1
YouGov Oct 4 2,255 LV 48.0 45.0 D+3
GBAO (D)Partisan Oct 4 600 LV 46.0 41.0 D+5
Trafalgar Group (R)Partisan Oct 1 1,095 LV 44.0 44.0 Even
New York Times / Siena University Sep 30 605 LV 45.0 45.0 Even
Wedgewood Polls Sep 24 500 LV 50.0 48.0 D+2
Global Strategy Group (D)Partisan Sep 16 800 LV 49.0 47.0 D+2
Emerson College Sep 16 750 LV 45.0 43.0 D+2
co/efficient (R)Partisan Sep 10 915 LV 44.0 49.0 R+5
Global Strategy Group (D)Partisan Aug 16 800 LV 44.0 43.0 D+1
Public Policy Polling (D)Partisan Aug 8 569 LV 45.0 46.0 R+1
Partisan polls are sponsored by a campaign, party or aligned group and are marked. They are shown because they are part of the record, not because they carry the same weight.