Election Day, Nov 3 9 daysSenate D 78%House D 93%Governors D 86%Forecast updated Oct 25

How healthy is each campaign, and how does each side win? A health score for both campaigns in every Senate, governor and contested House race, and the path to victory for each side.

Senate · Kansas

Kansas Senate

Adam Hamilton vs Roger Marshall

ForecastD +2.5
Democrat65%
Republican35%
RatingLean D
Full forecast
Brief me as

Neutral view. Pick a side and the War Room briefs you as that campaign's operative.

Vital signs

Campaign health, 0 to 100, from public money, outside spending, ballots and activity
DemocratAdam HamiltonStableBase 65, minus 4 for liabilities
610100
  • Money weight 2574

    Raised $13.5M against $4.8M for Roger Marshall.

  • Cash weight 2065

    $1.7M in the bank against $922K for Roger Marshall. As of 09/30/2026.

  • Air cover weight 1553

    Outside groups spent $19.1M helping Adam Hamilton and $17.1M helping Roger Marshall.

  • Early vote weight 1570

    Registered Democrats cast 48% of the 154,074 ballots in Kansas so far, against 39% for the other party. That is 16.6 points better for Democrats than the forecast expected by now. Counts registration, not votes.

  • Activity weight 1050

    1 mention on shows and podcasts in two weeks. 1 story on the On Point news desk in two weeks.

  • −4 Contested items in the watchdog file. 2 allegations on file that the campaign disputes; opponents can run on them.
Open the people file
RepublicanRoger MarshallCriticalBase 41, minus 2 for liabilities
390100
  • Money weight 2526

    Raised $4.8M against $13.5M for Adam Hamilton.

  • Cash weight 2035

    $922K in the bank against $1.7M for Adam Hamilton. As of 09/30/2026.

  • Air cover weight 1547

    Outside groups spent $17.1M helping Roger Marshall and $19.1M helping Adam Hamilton.

  • Early vote weight 1530

    Registered Republicans cast 39% of the 154,074 ballots in Kansas so far, against 48% for the other party. That is 16.6 points worse for Republicans than the forecast expected by now. Counts registration, not votes.

  • Activity weight 10100

    2 campaign stops by the candidate or surrogates in 30 days. 1 mention on shows and podcasts in two weeks. $140K in Google political ads this cycle. 1 story on the On Point news desk in two weeks.

  • −2 Contested items in the watchdog file. 1 allegation on file that the campaign disputes; opponents can run on them.
Open the people file

How each side wins

From the forecast, the polls, the county map, voter groups, money and ballots
If you work for Adam Hamilton
  1. Protect the lead

    Adam Hamilton leads by 2.5 in the forecast and wins 65% of simulations. The cushion is about 28,411 votes; a one point swing is about 5,728 voters changing sides.

  2. The range

    In 8 of 10 simulations the result lands between R +5.0 and D +10.2. A normal polling error decides it.

  3. The polls

    The polls page average is D +2.8. Your best recent poll is Emerson College / Nexstar at D +2.8; your worst is InsiderAdvantage at R +0.9. 10 polls in the last 30 days.

  4. Turn out the base

    The biggest vote banks for Democrats: Johnson, a projected net 83,247 votes; Douglas, a projected net 29,489 votes; Wyandotte, a projected net 21,595 votes. Every point of extra turnout here is worth more than persuasion anywhere else.

  5. Win the battlegrounds

    The large counties within 12 points: Sedgwick, D +0.4, 15.9% of the vote; Leavenworth, D +0.5, 2.7% of the vote; Saline, R +11.6, 1.8% of the vote; Crawford, R +3.9, 1.2% of the vote.

  6. Where you run behind the 2024 map

    Against the 2024 presidential vote, Adam Hamilton runs furthest behind in Pottawatomie, Sedgwick, McPherson. That is where the forecast sees voters who backed your side two years ago and have not come back yet.

  7. The coalition levers

    Groups big enough to move the race: White voters, 83% of voters, 43 to 55, where a 5 point gain is worth 4.14 points; Voters who cast ballots in 2022 and 2024, 68% of voters, 47 to 50, where a 5 point gain is worth 3.42 points; Voters who find daily costs hard to afford, 62% of voters, 49 to 47, where a 5 point gain is worth 3.12 points.

  8. Where you lose ground

    The forecast's worst groups for Adam Hamilton: Immigration voters 22 to 75, Small counties 32 to 65, White voters 43 to 55. Cutting the loss here is often cheaper than winning new groups.

  9. The money

    $1.7M cash against $922K. Spend it early on persuasion television in the battleground counties and keep a reserve for the last week.

  10. The early vote

    Registered Democrats cast 48% of the 154,074 ballots in Kansas so far, against 39% for the other party. That is 16.6 points better for Democrats than the forecast expected by now.

  11. What the ballots so far say

    The early vote has moved this forecast 3.0 points toward Adam Hamilton. Bank it: chase the remaining mail ballots and low propensity voters who have not voted.

  12. Roger Marshall's strongest asset

    Activity: 2 campaign stops by the candidate or surrogates in 30 days.

  13. An opening

    Tariffs, diesel prices from the Iran war and the beef import waiver hit farmers, and the patient lawsuits; Trump's Kansas approval was 40 percent in a September Emerson poll. Source

If you work for Roger Marshall
  1. Close the gap

    Roger Marshall trails by 2.5 and wins 35% of simulations. Closing it takes about 14,206 voters switching sides, or 28,411 more net votes from new turnout.

  2. The range

    In 8 of 10 simulations the result lands between D +10.2 and R +5.0. A normal polling error decides it.

  3. The polls

    The polls page average is D +2.8. Your best recent poll is InsiderAdvantage at R +0.9; your worst is Emerson College / Nexstar at D +2.8. 10 polls in the last 30 days.

  4. Turn out the base

    The biggest vote banks for Republicans: Butler, a projected net 6,404 votes; Reno, a projected net 4,421 votes; Pottawatomie, a projected net 4,134 votes. Every point of extra turnout here is worth more than persuasion anywhere else.

  5. Win the battlegrounds

    The large counties within 12 points: Sedgwick, D +0.4, 15.9% of the vote; Leavenworth, D +0.5, 2.7% of the vote; Saline, R +11.6, 1.8% of the vote; Crawford, R +3.9, 1.2% of the vote.

  6. Where you run behind the 2024 map

    Against the 2024 presidential vote, Roger Marshall runs furthest behind in Ellis, Wyandotte, Leavenworth. That is where the forecast sees voters who backed your side two years ago and have not come back yet.

  7. The coalition levers

    Groups big enough to move the race: White voters, 83% of voters, 55 to 43, where a 5 point gain is worth 4.14 points; Voters who cast ballots in 2022 and 2024, 68% of voters, 50 to 47, where a 5 point gain is worth 3.42 points; Voters who find daily costs hard to afford, 62% of voters, 47 to 49, where a 5 point gain is worth 3.12 points.

  8. Where you lose ground

    The forecast's worst groups for Roger Marshall: Black voters 12 to 86, Asian and other voters 24 to 72, 2024 nonvoters and third party voters 32 to 65. Cutting the loss here is often cheaper than winning new groups.

  9. The money

    $922K cash against $1.7M. Outspent: lean on earned media, digital, field and the outside groups, and pick the two or three media markets that decide it.

  10. The early vote

    Registered Republicans cast 39% of the 154,074 ballots in Kansas so far, against 48% for the other party. That is 16.6 points worse for Republicans than the forecast expected by now.

  11. What the ballots so far say

    The early vote has moved this forecast 3.0 points away from Roger Marshall. Election Day has to make it up: the remaining vote must break harder your way than the forecast expects.

  12. Adam Hamilton's strongest asset

    Money: Raised $13.5M against $4.8M for Roger Marshall.

  13. An opening

    Marshall's camp ties him to Schumer and national Democrats and attacks his handling of a 2005 church camp report, calling him unfit; Hamilton says the inquiry was inconclusive and he should have called police. Source

The map for Hamilton

County projections from the forecast
Vote banksWhere the biggest net margins come from
CountyForecastVote shareNet D
JohnsonD +28.525.5%+83,247
DouglasD +55.84.6%+29,489
WyandotteD +50.03.8%+21,595
ShawneeD +17.36.3%+12,419
BattlegroundsLarge counties within 12 points
CountyForecastVote shareNet D
SedgwickD +0.415.9%+703
LeavenworthD +0.52.7%+157
SalineR +11.61.8%-2,341
CrawfordR +3.91.2%-543
Behind the 2024 mapRunning furthest behind the last presidential vote
CountyForecastVote shareNet D
PottawatomieR +36.11%-4,134
SedgwickD +0.415.9%+703
McPhersonR +26.81.1%-3,334

The coalition

Hamilton against Marshall among the groups that can move it, from the forecast's voter group estimates
Swing groups
  • White voters83% of voters · a 5 point gain is worth 4.1
    4355
  • Voters who cast ballots in 2022 and 202468% of voters · a 5 point gain is worth 3.4
    4750
  • Voters who find daily costs hard to afford62% of voters · a 5 point gain is worth 3.1
    4947
  • Voters without a degree53% of voters · a 5 point gain is worth 2.6
    4553
Weakest groups
  • Immigration voters11% of voters · a 5 point gain is worth 0.6
    2275
  • Small counties37% of voters · a 5 point gain is worth 1.8
    3265
  • White voters83% of voters · a 5 point gain is worth 4.1
    4355
HamiltonMarshall

Scouting report

From the Watchdog people files, each line with its source
Adam Hamilton
  • Main message. He runs as an independent minded Democrat leading from the center, focused on pocketbook costs, and says there is room for Trump voters in his campaign. Source
  • Biggest vulnerability as opponents frame it. Marshall's camp ties him to Schumer and national Democrats and attacks his handling of a 2005 church camp report, calling him unfit; Hamilton says the inquiry was inconclusive and he should have called police. Source
  • Strongest coalition. Unaffiliated voters, about 29 percent of Kansas registrants; Emerson in September had him up 42 to 27 among independents and 45 to 43 overall. Source
  • Farm opening. The Kansas Livestock Association declined to endorse Marshall this cycle and farmers are angry over tariffs and diesel, though many still distrust Democrats on farming. Source
  • Recent event. Cook moved the race to Toss Up on October 6, 2026, and Trump rallied near Wichita for Marshall on October 19. Source
  • Money edge. He outraised Marshall nearly three to one through September 30, but Marshall's side had nearly ten times the ad reservations as of October 2. Source

Top donor blocs: Small donors, Party and leadership, Ideological groups

Roger Marshall
  • Main message. Keep Trump's agenda going and keep the Senate Republican; he told voters control of the Senate goes through Kansas. Source
  • Biggest vulnerability as opponents frame it. Tariffs, diesel prices from the Iran war and the beef import waiver hit farmers, and the patient lawsuits; Trump's Kansas approval was 40 percent in a September Emerson poll. Source
  • Strongest coalition. Trump aligned Republicans, who outnumber Democrats about 900,000 to 500,000 in registration; he drew more than 6,000 to a Trump rally near Wichita on October 19. Source
  • Notable event. The Kansas Livestock Association declined to endorse him for the first time since 2016. Source
  • Money picture. Outraised about three to one by Hamilton through September 30, but SLF, Main Street Fund, AFP Action and Club for Growth Action are covering the gap. Source

Top donor blocs: Party and leadership, Billionaire megadonor, Sugar and agriculture

The forecast

Margin over recent runs
R +2.8D +2.621 runs agonow
Now
D +2.5
8 in 10 land between
D +10.2 and R +5.0
Polling average
D +2.8
Partisan lean
R +14.9
Early vote effect
D +3.0

Recent polls

Last 45 days
PollsterDays agoSampleResult
On Point Polling0479 LVD +1.8
InsiderAdvantage1800 LVR +0.9
InsiderAdvantage51,200 LVD +1.1
GBAO (D)11600 LVD +2.6
GBAO for Hamilton (D)11600 LVD +2.7
YouGov112,255 LVD +2.2
Trafalgar Group (R)141,095 LVD +2.1
New York Times/Siena15605 LVR +0.6
Emerson College / Nexstar29750 LVD +2.8
Global Strategy Group (D)29800 LVD +1.6
co/efficient (R)35915 LVR +1.0

Money and the air war

Reports as of 09/30/2026
HamiltonMarshall
Raised$13.5M$4.8M
Spent$2.4M$5.6M
Cash on hand$1.7M$922K
Outside money for$19.1M$17.1M
Google ads$0$140K
Biggest outside spenders
  • Senate Leadership Fund against Adam Hamilton$6.0M
  • People Over Politics Action Fund against Roger Marshall$3.4M
  • WinSenate against Roger Marshall$3.3M
  • Club for Growth Action against Adam Hamilton$2.5M
  • Main Street Fund against Adam Hamilton$2.0M
  • Americans for Prosperity Action against Adam Hamilton$2.0M
Ad buys
  • Outside groups combined, airings 9/28 to 10/11 Source$6.7M
Follow the money

The early vote

Kansas, through 2026-10-24
Ballots cast
154,074
Party data
Reported by the state
Ballot margin
D +8.6
Forecast expected
R +8.0
Against expectation
16.6 points better for Democrats

Party registration of who has voted, not how they voted.

Open the early vote tracker

Media watch

Who is putting this race in front of an audience
  • 2026-10-22
    Harry Enten analyst

    On Anderson Cooper 360 he said polling in the Kansas Senate race is tied and listed it among the races that could hand Democrats a majority. Source

  • 2026-10-20
    Karl Rove commentator, leans R

    Said Democrats will fall short in Kansas but it is a race. Source

  • 2026-10-20
    Nathan Gonzales analyst

    Inside Elections moved the Kansas Senate race between Roger Marshall and Adam Hamilton from Likely Republican to Tilt Republican. Source

  • 2026-10-16
    Harry Enten analyst

    Named Kansas among toss up Senate races, with polling showing a tie or Democrats up a few points. Source

  • 2026-10-06
    Krystal Ball host, leans other

    Breaking Points ran a 'GOP Panic Over Kansas' segment on Senate Leadership Fund spending about $14 million to rescue Sen. Roger Marshall. Source

  • 2026-10-02
    David Chalian analyst

    Said the GOP moving money to defend Roger Marshall in Kansas was not on anyone's bingo card. Source

  • 2026-09-22
    Remy Numa analyst

    Fox News Power Rankings moved Kansas Senate from Likely R to Lean R. Source

  • 2026-09-02
    Tim Miller podcaster, leans D

    Hosted Rich Baris, who said Kansas, Nebraska, Montana, Texas and Ohio could all be Democratic openings. Source

Media watch

On the trail

Rallies and events, newest first
  • 2026-10-26
    JD Vance announced in Topeka

    Announced Monday rally at HME Inc. Haas Group, hosted by Trump 47 Committee, Vance to speak at 5:15 p.m. Source

  • 2026-10-19
    Donald Trump rally in Park City

    Heartland Credit Union Arena rally near Wichita. Source

  • 2026-10-19
    Roger Marshall rally in Park City

    Marshall spoke before President Trump at Heartland Credit Union Arena, focusing on Adam Hamilton, with Ted Nugent and Agriculture Secretary Brooke Rollins also present. Source

  • 2026-09-14
    JD Vance event in Olathe

    Campaign stop at an Olathe manufacturer. Source

From the news desk

Races that move with this one

When the polls miss here, they tend to miss there too