Who Is Running for Senate in Kansas
Republican Senator Roger Marshall faces Democrat Adam Hamilton and Libertarian David Graham for the U.S. Senate in Kansas on November 3, 2026. Marshall has held the seat since January 3, 2021 (Ballotpedia).
Key facts
- The winner serves a six-year term, from January 3, 2027 to January 3, 2033.
- Roger Marshall won the Republican primary with 79.9% of the vote on August 4, 2026.
- Adam Hamilton won an 11-candidate Democratic primary with 34.6%.
- Through July 15, 2026, Marshall had $5.4 million in the bank to Hamilton’s $1.7 million.
Candidates for U.S. Senate in Kansas, November 3, 2026
Source: Ballotpedia, United States Senate election in Kansas, 2026
Kansas’s other senator, Republican Jerry Moran, is not on the ballot. He won his seat in 2022 over Democrat Mark Holland, 60.0% to 37.0% (Ballotpedia). Our midterm elections explainer covers the other Senate races on November 3.
Kansas Senate Primary Results
Roger Marshall beat Pond Naramore in the Republican primary on August 4, 2026, 79.9% to 20.1%, out of 338,732 votes (Kansas Secretary of State, official totals).
The Democratic primary was crowded. Adam Hamilton won about a third of the vote, well ahead of the next two finishers.
| Category | Value |
|---|---|
| Adam Hamilton | 34.6% |
| Christy Davis | 14.2% |
| Noah Taylor | 13.5% |
Source: Kansas Secretary of State, official totals. 224,076 votes cast; eight other candidates are not shown.
The 2020 Kansas Senate Result
Roger Marshall first won the seat in 2020, beating Democrat Barbara Bollier by 156,432 votes. The seat was open that year (Ballotpedia).
- 53.2%
- Roger Marshall (R), 2020
- 41.8%
- Barbara Bollier (D), 2020
- 5%
- Jason Buckley (L), 2020
That race was certified. This page carries no polls or race ratings for 2026.
Marshall and Hamilton Records
Roger Marshall served in the U.S. House before the Senate, winning House races in 2016 and 2018 (Ballotpedia, Roger Marshall). Ballotpedia lists no elected office for Adam Hamilton. It says he is a pastor who founded a church in the Kansas City area in 1990 (Ballotpedia, Adam Hamilton).
Public offices and careers of Roger Marshall and Adam Hamilton
Source: Ballotpedia, Roger Marshall and Adam Hamilton (Kansas)
Kansas Senate Campaign Money
Through July 15, 2026, Roger Marshall‘s campaign had raised $6.2 million and Adam Hamilton‘s $4.2 million, according to Federal Election Commission data. Marshall had spent $1.0 million and had $5.4 million on hand. Hamilton, who had a contested primary, had spent $2.4 million and had $1.7 million on hand (Ballotpedia’s FEC table).
How to Vote for Senate in Kansas
Register by October 13, 2026. Kansas has no Election Day registration. You can vote in person or by mail starting October 14, 2026, and advance voters who vote in person must show a photo ID (Kansas Secretary of State). Check your registration and polling place on VoterView.
Kansas's 2026 Senate election, step by step
- October 13, 2026 Registration deadline The last day to register for November 3.
- October 14, 2026 Advance voting begins Vote early in person or by mail, up to 20 days before the election.
- November 3, 2026 Election Day Polls are open 7 a.m. to 7 p.m. Central time (6 a.m. to 6 p.m. in Mountain time counties).
- January 3, 2027 The new term begins The term runs to January 3, 2033.
Mail your ballot early or drop it off. State law sets the deadline at the close of polls on Election Day. A district court has ordered that ballots postmarked by Election Day still count if they arrive by the last postal delivery on Friday, November 6, 2026, and the Court of Appeals refused to pause that order for this election (Kansas Secretary of State).
Kansas Senate Questions
Who is running for U.S. Senate in Kansas in 2026?
Republican Senator Roger Marshall, Democrat Adam Hamilton and Libertarian David Graham are on the November 3, 2026 ballot. The winner serves from January 3, 2027 to January 3, 2033.
Who won the 2026 Kansas Senate primaries?
On August 4, Roger Marshall won the Republican primary with 79.9% and Adam Hamilton won an 11-candidate Democratic primary with 34.6%, according to the official count.
How long has Roger Marshall been a senator?
Since January 3, 2021. He won the open seat in 2020 over Democrat Barbara Bollier, 53.2% to 41.8%, after serving in the U.S. House.
How much have Marshall and Hamilton raised?
Through July 15, 2026, Roger Marshall had raised $6.2 million and had $5.4 million on hand. Adam Hamilton had raised $4.2 million and had $1.7 million on hand, according to FEC data.
When does a mailed ballot have to arrive in Kansas?
For November 3, 2026, a court order requires counting ballots postmarked by Election Day that arrive by the last postal delivery on Friday, November 6, 2026. State law sets the close of polls as the deadline, so mail early or use a drop box.
What You Can Do
- Check your registration on VoterView before October 13, 2026.
- Vote early starting October 14, 2026, or drop a mailed ballot at your county election office or a drop box.
- Read the candidates’ filings on the Federal Election Commission’s site, which Ballotpedia summarizes on its race page.
- Contact Senators Marshall and Moran about the votes coming up in Congress. Our letter-writing guide shows how.
- Read the rest of your ballot: the Kansas governor race is on the same ballot.