This briefing reflects reporting and polling available as of October 7, 2026. Candidates, endorsements and polling can change before Election Day on November 3, 2026.
Why This Race Matters
Kansas has not elected a Democrat to the U.S. Senate since 1932, the Kansas Reflector reports, yet Republican Sen. Roger Marshall and Democrat Adam Hamilton are polling within a few points of each other. Forecasters moved the race from Solid to Likely Republican after Hamilton won his August 4 primary. Democrats still win governor’s races here, and the same ballot includes the Kansas governor’s race.
The Race
Marshall was renominated with little opposition. Hamilton won the Democratic primary with roughly 35 percent in a field of 11. Cook Political Report showed the race at Likely Republican, last updated September 23, with a partisan voting index of R+8. Sabato’s Crystal Ball also moved it from Safe to Likely Republican, and Inside Elections listed Likely Republican on September 3. The Economist and RealClearPolitics were listed at Lean Republican on September 10. Newsweek and Raw Story describe a Cook move to Lean Republican that this article could not confirm on Cook’s own page, so treat the current Cook rating as uncertain.
Polls are pollster by pollster, and several come from partisan sponsors. Per a Newsweek roundup, co/efficient (a Republican firm) had Marshall ahead 49 to 44 on September 8 to 10. Emerson College for Nexstar had Hamilton ahead 45 to 43 on September 15 and 16, with Libertarian David Graham at 4 percent. Wedgewood Polls had Hamilton up 50 to 48 on September 22 to 24, with a margin of error of 4.4 points, and this article could not determine its sponsor. Earlier, Global Strategy Group and Public Policy Polling, both Democratic firms, had the race at 44 to 43 for Hamilton and 46 to 45 for Marshall in August.
Hamilton outraised Marshall $3.7 million to $610,000 in the latest quarter reported by the Kansas Reflector, while Marshall has held more cash overall. This article could not locate comparable total-cycle figures for both candidates, so it does not compare them.
The Candidates
Roger Marshall (R) is a first-term senator and OB-GYN from Great Bend who served in the U.S. House from 2017 to 2021. He has Trump’s endorsement, and Vice President JD Vance campaigned with him in September. He has attacked Hamilton as too woke for Kansas.
Adam Hamilton (D) is 61 and founded the Church of the Resurrection in Leawood, which the AP describes as the nation’s largest United Methodist congregation, with about 25,000 members across nine locations. He has not held office, calls himself a centrist, and has criticized Republican cuts to Medicaid and food assistance. The AP report did not state a Hamilton position on abortion, and this article could not locate one.
David C. Graham (Libertarian) of Overland Park will be on the ballot and ran against Sen. Jerry Moran in 2022. He has polled between 2 and 5 percent. Below-threshold candidates can still affect a close race, though the polling reviewed here does not show which candidate he would draw from.
Top Issues
Medical debt. A New York Times investigation, summarized by the Boston Globe, found Marshall sued more than 700 patients over unpaid bills between 2003 and 2015, and that 81 were arrested for missing court dates. Cook cited his billing and collection practices as putting him on the defensive.
Residency. KCUR reports that Marshall and his wife bought a Sarasota home in 2019 and that official trips there cost over $18,000 in public funds from 2021 to 2024. Marshall says the home was damaged by two hurricanes and has been uninhabitable for two years.
Costs, tariffs and war. In his primary-night speech, Hamilton criticized Marshall’s positions on tariffs and military action in Iran, KCUR reported, and said families are paying about $200 a month more than a year ago. Newsweek lists immigration enforcement, health costs and agriculture as major themes. Our U.S.-Iran war report covers the conflict itself.
Evidence Check
Claim (Marshall): His spokesperson says he spent decades caring for patients regardless of ability to pay, and that judges, not doctors, issue warrants. Check: The Times analysis of court records found the suits and arrests, so the dispute is over responsibility and intent, not over whether the cases exist. This article could not review the records itself.
Claim (Marshall): The Sarasota home has been uninhabitable for two years. Check: Public records show he held Florida fishing licenses through May 2026, per KCUR. This article could not verify the home’s condition.
Claim (Marshall): A Republican super PAC ad says Hamilton opposes the beef industry, citing a sermon. Check: The AP says the attack misrepresents a climate sermon. This article could not review the full sermon.
Claim (Hamilton): Marshall voted to take away Kansans’ health coverage, Hamilton said in a statement responding to the Times report. Check: The sources reviewed do not name the bill or a coverage estimate behind the claim.
Claim (Hamilton): Families are paying $200 a month more than a year ago. Check: The campaign did not cite a source in the coverage reviewed, and this article could not verify it.
Supporter Voices
Reporting reviewed here offers campaign officials and national party figures, not Kansas voters speaking for either side. Marshall’s campaign called the debt story a politically timed attack on a rural doctor. Hamilton’s spokesperson Tyson Brody said Marshall “abandoned Kansas,” per KCUR. Sen. Tim Scott, who chairs the Republican Senate campaign committee, said the race will be closer than he wants, Raw Story reported, citing Semafor, which this article could not check directly. At the September 12 State Fair debate, Newsweek reported that audience members booed Marshall’s defense of the lawsuits. This article could not locate rank-and-file voter statements.
How This Race Is Being Framed
Republicans frame Hamilton as a liberal pastor out of step with a farm state, and they have brought in Vance and Trump’s endorsement to nationalize the race. Democrats frame Marshall as a Washington insider tied to tariffs, war and medical debt, and a senator who spends time in Florida. The Cook Political Report says Hamilton is running an increasingly strong race, while the Republican campaign committee chair is publicly conceding a closer contest. Both camps are using Kansas as a test of whether a conservative state will elect a Democrat to the Senate.
Related Links
- AP via PBS: No Democrat has won a Kansas Senate seat in a century. Can a megachurch pastor change that?
- Kansas Reflector: Analysts shift Kansas’ US Senate race from ‘safe R’ to ‘likely R’
- KCTV5: Report claims Sen. Roger Marshall sued Kansas patients over medical debt
- Lawrence Times: Who’s running to represent Kansas in the U.S. Senate in 2026?
- PoliTalking: Kansas Governor 2026, Cindy Holscher vs. Ty Masterson
- PoliTalking: How US Elections Actually Work
Discussion Questions
- Have you ever struggled to pay a medical bill? How did you handle it?
- Should a senator’s past business practices as a doctor matter to voters?
- How much should a candidate’s career as a pastor matter in a Senate race?
- Does it matter if a senator spends a lot of time in another state?
- Why might Kansas vote for Democratic governors but not Democratic senators?
- In a Senate race, which matters more: the candidate or the party?
- How should voters read polls paid for by one party’s allies?
- Should the law limit how doctors and hospitals collect medical debt?
- How might tariffs and farm prices affect how rural voters decide?
- Imagine you are advising one of the candidates for the final month. What would you tell them to focus on, and why?
