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KS2026

U.S. Senate · Kansas · 2026

General election · 2 on the November ballot · Incumbent running

VecR 14 · OpenTenD 59%Att7

Result

CalledFlip: R to D

Adam Hamilton (D) won this race with 51.0% of the vote, 5.1 points ahead, defeating incumbent Roger Marshall.

  • Adam HamiltonDemocraticWinner51.0%562,076 votes
  • Roger MarshallRepublicanIncumbent46.0%506,752 votes
  • David GrahamL3.0%33,326 votes
Margin
55,324 votes (5.1 points)
Called
Called by Wikipedia editors, Nov 3, 11:22 PM ET (revision)
Seat
Changed party: held by Roger Marshall (R)
Last updated
Nov 14, 2:02 PM ET

Called it: hit Our locked call before polls closed was D; the winner is D. See every locked call

Unofficial until the state certifies the result.

Before the election

Polls, ratings and the Vugol Tensor below were published before votes were counted. They are not results.

Race poll averageU.S. Senate · Kansas
Adam Hamilton
D
51%
Roger W Marshall
RIncumbent
49%
Verified poll average · 5 polls · newest poll ended 2026-10-29

Verified polls Hamilton leads Marshall by 1.2 points in our average of verified polls.

5 verified polls averaged, newest ended 2026-10-29. Page updated 2026-11-15. Sources · What is validated

ExperimentalNews attention 7/100, how much coverage the race gets, not who is winning. Updated today. How it works

On the Kansas ballot, Nov 3, 2026 U.S. Senate, 3 names on the official list. Election Day has passed; see the ballot as it was.Voting in Kansas? Check your registration, get a mail ballot, find your polling place.

On the November ballot (2)

From reported primary results, checked 2026-11-14. Each state certifies its own ballot; see the source below.

Ran in the primary (8)

Lost a primary or runoff for this seat, not on the November ballot.

Ballot source: https://en.wikipedia.org/w/index.php?title=2026_United_States_Senate_election_in_Kansas&oldid=1385677446

Polling average · 5 verified pollsVerified
Hamilton +1.2

Latest verified field polling

Verified = published by the pollster that conducted it, with a public source we link to.

5 verified polls

Cite / verify

Cite thishttps://vugol.me/races/US-KS
Sourcehttps://d3nkl3psvxxpe9.cloudfront.net/documents/ttw_ks_20261026_lv.pdf
Retrieved2026-11-15

Polling average Updates as polls arrive

5 verified inputs
50.6% Adam Hamilton49.4% Roger W Marshall
25436090d60d30dtodayco/efficient (verified) · 2026-09-10 · Adam Hamilton (D) 44.0%Global Strategy Group (quarantined) · 2026-09-16 · Adam Hamilton (D) 49.0%Emerson College (verified) · 2026-09-16 · Adam Hamilton (D) 45.0%Wedgewood Polls (quarantined) · 2026-09-24 · Adam Hamilton (D) 50.0%Trafalgar Group (quarantined) · 2026-10-01 · Adam Hamilton (D) 44.0%YouGov (verified) · 2026-10-04 · Adam Hamilton (D) 48.0%InsiderAdvantage (verified) · 2026-10-14 · Adam Hamilton (D) 47.0%SSRS (quarantined) · 2026-10-26 · Adam Hamilton (D) 49.0%YouGov (verified) · 2026-10-29 · Adam Hamilton (D) 50.0%AtlasIntel (quarantined) · 2026-11-01 · Adam Hamilton (D) 52.0%Survey 160 (quarantined) · 2026-11-01 · Adam Hamilton (D) 50.0%co/efficient (verified) · 2026-09-10 · Roger Marshall (R) 49.0%Global Strategy Group (quarantined) · 2026-09-16 · Roger Marshall (R) 47.0%Emerson College (verified) · 2026-09-16 · Roger Marshall (R) 43.0%Wedgewood Polls (quarantined) · 2026-09-24 · Roger Marshall (R) 48.0%Trafalgar Group (quarantined) · 2026-10-01 · Roger Marshall (R) 44.0%YouGov (verified) · 2026-10-04 · Roger Marshall (R) 45.0%InsiderAdvantage (verified) · 2026-10-14 · Roger Marshall (R) 48.0%SSRS (quarantined) · 2026-10-26 · Roger Marshall (R) 45.0%YouGov (verified) · 2026-10-29 · Roger Marshall (R) 49.0%AtlasIntel (quarantined) · 2026-11-01 · Roger Marshall (R) 45.0%Survey 160 (quarantined) · 2026-11-01 · Roger Marshall (R) 43.0%Live polling average · Adam Hamilton (D) 50.6%Live polling average · Roger Marshall (R) 49.4%
Adam Hamilton (D)Roger Marshall (R)● verified poll · ○ quarantined poll · ◎ live average

Vugol Tensor

How far this poll average can miss · a range, not a prediction

tensor-1.0.0

Centre D+1.2. Four times in five the result lands between D+7.9 and R+5.5; nine in ten between D+9.8 and R+7.4. Chance the Democrat finishes ahead: 59%.

Same inputs as the Vugol Tensor page: the verified polling average above (5 verified polls), plus how far polls have missed since 1998. In the backtest the plain poll average picked the wrong winner in about 11% of polled, mostly competitive races (11.2%, 946 races, 1998 to 2024), and polls miss together. Not a forecast guarantee. How Tensor works →

Campaign money (FEC)

Candidate committee totals for the cycle from the Federal Election Commission (public domain), as of each committee's latest report.

CandidateRaisedSpentCash on handThrough
Roger W Marshall Republican$7,546,611$6,946,763$809,8062026-10-14
Adam Hamilton Democratic$19,175,044$16,300,681$2,874,3642026-10-14
Christy Davis Democratic$194,388$108,478$85,9102026-06-30
Erik Murray Democratic$212,503$200,008$12,4952026-07-15
Jason Hart Democratic$52,236$51,578$6592026-09-30
Kevin Latz Democratic$40,954$36,713$53,1352026-10-31
Lois Anne Elizabeth Lea Parelkar Democratic$32,725$30,076$2,6492026-07-15
Noah Taylor Democratic$197,388$185,250$12,0952026-10-14
Patrick Schmidt Democratic$256,046$256,046$02026-09-30
Sandy Spidel Neumann Democratic$411,754$385,070$26,6832026-09-30

Ad spending (FEC)

What each campaign reported paying for ads, and what outside groups (super PACs, PACs and parties) reported spending for and against each candidate. Federal Election Commission filings, public domain.

CandidateCampaign's own adsOutside groups forOutside groups against
Adam Hamilton Democratic$8.1M+ $246K mail · through 2026-09-30$12M$10.9M ads · 13 groups$31.7M$30.3M ads · 9 groups
Roger W Marshall Republican$0+ $1,012 mail · through 2026-07-15$3.5M$2.1M ads · 10 groups$43.3M$41.9M ads · 14 groups
Noah Taylor Democratic$26K+ $957 mail · through 2026-07-15$2.2M$2M ads · 2 groupsnone reported
Sandy Spidel Neumann Democratic$32K+ $1,467 mail · through 2026-07-15none reportednone reported
Christy Davis Democratic$3,231+ $1,054 mail · through 2026-06-30none reportednone reported
Jason Hart Democratic$2,500through 2026-09-30none reportednone reported

Biggest outside spenders

  • Adam Hamilton. For: Lower Costs Now $5.1M, Government That Works PAC $4M, United Futures PAC $831K. Against: SLF PAC $16.5M, MAIN STREET FUND $3.8M, Club for Growth Action $2.5M
  • Roger W Marshall. For: Americans for Prosperity Action, Inc. (AFP Action) DBA CVA Action and DBA LIBRE Action $1.3M, SLF PAC $769K, Protect Freedom Political Action Committee $458K. Against: PEOPLE OVER POLITICS ACTION FUND $14.7M, WinSenate $14.1M, Lower Costs Now $6M
  • Noah Taylor. For: THE 1861 INITIATIVE $2.2M, Way Back PAC $10K

Outside groups: 24- and 48-hour independent expenditure reports for the 2026 primary and general, through 2026-11-03, each expenditure counted once after amendments; "ads" is TV, radio, digital and other media, and the rest is mail, phones, canvassing and similar. Campaign's own ads: TV, radio, digital, other media and ad production in the campaign committee's itemized payments, as the campaign described them, from the reports the FEC has processed (latest through 2026-09-30); newer reports appear as the FEC processes them. These are amounts committees reported paying, not airtime tracked by ad-monitoring firms, so very recent buys and future reservations may not show yet. Parser fec-ad-spend-1.0.0.

Results

Vote counts as reported by the state; transcribed from the Wikipedia election article (CC BY-SA 4.0), which cites the state’s official results.

general election

Adam Hamilton won562,07651.0%
Roger Marshall (incumbent)506,75246.0%
David Graham33,3263.0%

Democratic primary

Adam Hamilton won77,60734.6%
Christy Davis31,85714.2%
Noah Taylor30,36213.6%
Anne Parelkar16,8367.5%
Erik Murray15,1776.8%
Patrick Schmidt13,4036.0%
Sandy Spidel Neumann12,7175.7%
Jason Hart12,4125.5%
Damon Anderson5,8792.6%
Kevin Latz4,1101.8%
Michael Soetaert3,7161.7%

Republican primary

Roger Marshall (incumbent) won270,63279.9%
Arch Naramore68,10020.1%

Source: Wikipedia article revision (CC BY-SA 4.0), retrieved 2026-11-14 · parser wiki-race-1.0.0

Key dates

Official federal election dates for this state from the FEC. Registration deadlines and early voting: see the state election office.

  • 2026-04-25, Election: U.S. Senate
  • 2026-08-04, Primary election: U.S. Senate
  • 2026-11-03, General election: U.S. Senate

Source: FEC election dates (public domain).

Primary and hypothetical polls (17)

Kept on file, never averaged into this race. Polls listed on the Wikipedia election article (CC BY-SA 4.0), each linked to that article revision and, where we know it, to the pollster's own site.

  • Hypothetical matchup · New York Times/Siena University · 2026-10-27–2026-11-01 · n=736 · Adam Hamilton (D) 49%,Roger Marshall (R) 44%,David Graham (L) 4% · pollster's site · release
  • Hypothetical matchup · Emerson College · 2026-10-26–2026-10-28 · n=800 · Adam Hamilton (D) 49%,Roger Marshall (R) 45%,David Graham (L) 3% · pollster's site · release
  • Hypothetical matchup · The Washington Post/SSPG · 2026-10-22–2026-10-26 · n=801 · Adam Hamilton (D) 52%,Roger Marshall (R) 43%,David Graham (L) 4% · release
  • Hypothetical matchup · RedBox Research (partisan) · 2026-10-20–2026-10-23 · n=1,301 · Roger Marshall (R) 46%,Adam Hamilton (D) 45%,David Graham (L) 3% · release
  • Hypothetical matchup · InsiderAdvantage (partisan) · 2026-10-13–2026-10-14 · n=1,200 · Roger Marshall (R) 48%,Adam Hamilton (D) 47%,David Graham (L) 3% · pollster's site · release
  • Hypothetical matchup · InsiderAdvantage (partisan) · 2026-10-09–2026-10-10 · n=1,200 · Adam Hamilton (D) 48%,Roger Marshall (R) 47%,David Graham (L) 3% · pollster's site · release
  • Hypothetical matchup · GBAO (partisan) · 2026-09-30–2026-10-04 · n=600 · Adam Hamilton (D) 46%,Roger Marshall (R) 41%,David Graham (L) 7% · release
  • Hypothetical matchup · Trafalgar Group (partisan) · 2026-09-29–2026-10-01 · n=1,095 · Roger Marshall (R) 44%,Adam Hamilton (D) 44%,David Graham (L) 2% · pollster's site · release
  • Hypothetical matchup · New York Times/Siena University · 2026-09-22–2026-09-30 · n=605 · Adam Hamilton (D) 45%,Roger Marshall (R) 45%,David Graham (L) 5% · pollster's site · release
  • Hypothetical matchup · Wedgewood Polls · 2026-09-22–2026-09-24 · n=500 · Adam Hamilton (D) 50%,Roger Marshall (R) 48%,David Graham (L) 2% · release
  • Hypothetical matchup · Emerson College · 2026-09-15–2026-09-16 · n=750 · Adam Hamilton (D) 45%,Roger Marshall (R) 43%,David Graham (L) 4% · pollster's site · release
  • Hypothetical matchup · co/efficient (partisan) · 2026-09-08–2026-09-10 · n=915 · Roger Marshall (R) 49%,Adam Hamilton (D) 44%,David Graham (L) 2% · pollster's site · release
  • Democratic primary · GBAO (partisan) · 2026-07-13–2026-07-16 · n=600 · Adam Hamilton (D) 30%,Christy Davis (D) 13%,Noah Taylor (D) 10%,Patrick Schmidt (D) 5% · release
  • Democratic primary · Change Research (partisan) · 2026-06-11–2026-06-15 · n=1,022 · Adam Hamilton (D) 18%,Christy Davis (D) 10%,Patrick Schmidt (D) 7%,Noah Taylor (D) 3% · pollster's site · release
  • Hypothetical matchup · Tavern Research (partisan) · 2026-01-26–2026-01-28 · n=1,013 · Adam Hamilton (I) 51%,Roger Marshall (R) 49% · release
  • Hypothetical matchup · Tavern Research (partisan) · 2026-01-26–2026-01-28 · n=1,013 · Roger Marshall (R) 55%,Patrick Schmidt (D) 45% · release
  • Hypothetical matchup · Tavern Research (partisan) · 2026-01-26–2026-01-28 · n=1,013 · Roger Marshall (R) 55%,Noah Taylor (D) 45% · release

In the news

Headlines from outlets across the political spectrum, linked to the publisher. Vugol.me doesn’t write or endorse them. How we choose them · All election news

Lab

Vugol Vector & Vugol Attention

Vugol Attention 7 Vugol Vector R · Open

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attention-1.0.0
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Vugol Vector

Proprietary ensemble model · a call, not a probability · model confidence: medium

vector-1.1.0
Democratic leanOpen centerRepublican lean
AnchoredHeldTiltingOpenTiltingHeldAnchored
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Evidenceno audit release · fundamentals only
Freshnessoldest input 2026-11-15 (today)

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Desk data: daily telemetry

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Sources

Vugol Vector band: Toss-up. Have a say in the Vugol race poll; it is open to signed-in voters and never feeds these numbers.

The four Vugol signals, side by side

They answer different questions and are kept apart. Full method: Methodology.

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