Skip to content
Project Curia

Elections · U.S. Senate · Kansas

2026 Kansas Senate race

Roger Marshall (Republican), Adam Hamilton (Democrat) and David C. Graham (Libertarian) are on the November 3, 2026 ballot for U.S. Senate in Kansas, as recorded September 22, 2026.

The November ballot

Marshall
$6.2M
Hamilton
$4.2M

Raised so far, filed with the FEC

Also in this race: David C. Graham (Libertarian).

Official candidate list: Kansas Secretary of State. Faces and bars are the campaigns that hold the seat or have $25,000 raised or outside spending on file; being outside that group is a filing fact, not a mark. Not a prediction.

The seat

Roger Marshall

Republican · Holds the seat now

First took office 2017 · Age 66

85
Trades disclosed
$1.4M
Estimated volume
Cosponsored S. 4134, the Stop Insider Trading Act

From the member's own disclosures and congress.gov. Not cosponsoring is not a vote against a ban.

See their record

How to vote in Kansas

  • General electionNovember 3, 2026 

Register 21 days before the election.

All dates and rules
Preview of this page's shareable card

Share this

How they won the primary

The primary · 224,076 votes

  • Adam Hamilton Won: 34.6% 77,607
  • Christy Davis: 14.2% 31,857
  • Noah Taylor: 13.5% 30,362
  • Anne Parelkar: 7.5% 16,836
  • Erik Murray: 6.8% 15,177

6 more candidates in the full results at the source named below.

Primary results as recorded September 26, 2026, ordered by votes. Source: Kansas Secretary of State official primary vote totals. Certified September 1, 2026. A primary result is a recorded fact about a past contest, not a prediction of November.

The money on this race

Raised by candidates
$12M
Outside money
$20M

Outside money, for and against

Supporting Marshall$1.3M
Opposing Marshall$8.4M
Supporting Hamilton$1.3M
Opposing Hamilton$6.6M

Independent expenditures; direction is each filer's own declared filing. The other $2.7M of the race's $20M was spent on candidates not listed here. No outside money is on file for or against the other name on this ballot.

Where each candidate's money comes from

5%$305KSmall donors$767K18%
36%$2.2MLarge donors$3.3M80%
40%$2.5MPACs$18K<1%
1%$72KParty--
--Self-funding$50K1%
18%$1.1MOther$3.7K<1%

Small donors give $200 or less; PACs are political action committees. Shares of each candidate's own receipts on file with the FEC. Outside money is not part of these figures.

Other includes money transferred in from committees the candidate authorized, such as a joint fundraising committee, which reports its own donors to the FEC: Roger Marshall $983K.

Who is spending on this race

The largest groups spending independently here, ranked; open a row for whose race the money went into.

1 to 5 of 17 groups

Independent expenditures reported to the FEC; direction is each group's own declared filing.

Not on the November ballot

10 filed

Primary candidates who did not advance, committees still on file, and candidacies that ended. Being here is a filing fact, not a mark against anyone.

How this seat voted last time

R+11 in 2020

  • Roger Marshall Won: 53.2%
  • Barbara Bollier: 41.8%

1,367,755 votes for candidates. Other candidates and write-ins took the remaining 5.0%. A past result is a filed fact, not a prediction of November.

Certified returns via MIT Election Data and Science Lab, from the House Clerk's election statistics and state canvasses.

More on the Kansas ballot4 House races statewideYour full ballot at VoterView Find your races by ZIP →

Candidates and financing from the FEC, public domain. Candidate totals are each campaign's latest FEC report, ending between June 30, 2026 and July 19, 2026. Outside money is the FEC's processed total of independent expenditures plus the 24- and 48-hour reports filed since each group's latest regular report. It covers each candidate's own campaign: the years since their previous federal election, up to the six their totals cover. Dataset built 2026-10-12. Nothing here is a forecast, a grade, or a ranking of candidates.