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R Republican · Incumbent · U.S. Senate, Kansas · Nov 3, 2026

Roger
Marshall

Republican U.S. Senator Roger Marshall of Kansas seeks re-election in 2026 after representing the state since 2021.

Background

Roger Marshall is a Republican U.S. senator from Kansas, having served in that office since January 2021. Before his Senate tenure, he represented Kansas's 1st congressional district in the U.S. House of Representatives from 2017 to 2021. 124

Prior to entering politics, Marshall worked for more than 25 years as an obstetrician-gynecologist in Great Bend, Kansas, and was also a medical-practice business owner. He earned a degree from Butler County Community College, a bachelor's degree from Kansas State University, and a medical degree from the University of Kansas. 2

Marshall is seeking re-election to his Senate seat in the November 3, 2026 election. He has been active on social media in his capacity as senator, and his official Senate website is marshall.senate.gov. 412811

At a glance

Party
Republican · Incumbent
Running for
U.S. Senate, Kansas
Election
Nov 3, 2026
Current office
U.S. Senator for Kansas
Website
kansansformarshall.com(opens in a new tab)

Where they stand

Each position links to the page it was drawn from. Quotes are verbatim.

Voting record

How Roger Marshall voted in Congress: 118th Congress (2023–24) and 119th Congress (2025–26), Jan 23, 2023 to Sep 30, 2026. From the official House and Senate roll call records.

roll call votes
1,606
missed
3.2%
with their party’s majority
94%

Recent key votes

  • Sep 30, 2026 · Senate · PN1129 · Economy & jobs
    Keith Sonderling, of Florida, to be Secretary of Labor
    On the Nomination · Nomination Confirmed
    Official roll call ↗(opens in a new tab)
    Yes
  • Sep 28, 2026 · Senate · S4668 · Education
    A bill to protect the name, image, and likeness rights of, and provide protections for, student athletes and to promote fair competition among intercollegiate athletics, and for other purposes.
    On Passage of the Bill · Bill Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Aug 8, 2026 · Senate · PN1078 · Crime & public safety
    Todd Blanche, of Florida, to be Attorney General
    On the Nomination · Nomination Confirmed
    Official roll call ↗(opens in a new tab)
    Yes
  • Aug 8, 2026 · Senate · HR6500 · Taxes & budget
    An act making continuing appropriations and extensions for fiscal year 2027, and for other purposes.
    On Passage of the Bill · Bill Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Aug 7, 2026 · Senate · HR5334 · Foreign policy & defense
    An act to impose sanctions and other measures with respect to the Russian Federation, as championed by the late Senator Lindsey O. Graham, and for other purposes.
    On Passage of the Bill · Bill Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Jul 28, 2026 · Senate · PN1092 · Foreign policy & defense
    Walter Clayton, of New York, to be Director of National Intelligence
    On the Nomination · Nomination Confirmed
    Official roll call ↗(opens in a new tab)
    Yes
  • Jun 5, 2026 · Senate · S2 · Taxes & budget
    An original bill to provide for reconciliation pursuant to title II of S. Con. Res. 33.
    On Passage of the Bill · Bill Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Apr 16, 2026 · Senate · HJRES140 · Climate & energy
    A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Land Management relating to Public Land Order No. 7917 for Withdrawal of Federal Lands; Cook, Lake, and Saint Louis Counties, MN.
    On the Joint Resolution · Joint Resolution Passed
    Official roll call ↗(opens in a new tab)
    Yes

Key votes are final decisions on bills and joint resolutions, and top nominations. Software sorts each into an issue from its official title, so check the roll call. All 1,606 votes →

Timeline

  1. Oct 11
    controversy
    Kansas City Star: Marshall's practice charged 18% annual interest on unpaid bills, higher than most Kansas doctors

    The Kansas City Star reported that Marshall's former medical practice applied an 18% annual interest rate on unpaid bills, which the newspaper said was higher than the rates it found in a review of roughly 150 other Kansas medical practices.

    Marshall charged 18% on medical bills — more than most Kansas doctors who sued · Oct 11, 2026 (opens in a new tab)
  2. Oct 10
    filing
    Report: Marshall had $6.2M in campaign contributions and $5.3M cash on hand

    An AP report indicated Marshall had more than $6.2 million in campaign contributions and approximately $5.3 million cash on hand, compared to Hamilton's roughly $4.17 million raised.

    Healthcare, energy, tariffs top Kansas .U.S. Senate race - Yahoo · Oct 10, 2026 (opens in a new tab)
  3. Oct 10
    controversy
    KCUR report details Marshall's history of blurring taxpayer funds and campaign cash

    KCUR published an investigation into Roger Marshall's history of allegedly blurring the line between taxpayer dollars and campaign cash, adding another controversy to his reelection campaign.

    Sen. Roger Marshall's history of blurring the line between taxpayer dollars and campaign cash · Oct 10, 2026 (opens in a new tab)
  4. Oct 9
    news
    Senate Majority PAC launches $5 million TV ad campaign supporting Hamilton against Marshall

    Politico reported that the Senate Majority PAC announced a $5 million statewide TV ad campaign supporting Hamilton, to run through Election Day on November 3.

    Democrats drop $5M into Kansas Senate race · Oct 9, 2026 (opens in a new tab)
  5. Oct 8
    debate
    FOX4 debate between Marshall and Hamilton scheduled for October 21

    A second debate between Marshall and Hamilton was announced, to be hosted by FOX4 and moderated by John Holt, scheduled for October 21.

    Kansas Senate race heats up as Marshall, Hamilton clash ... - Yahoo · Oct 8, 2026 (opens in a new tab)
  6. Oct 8
    news
    Marshall acknowledges expecting a closer race than anticipated

    Marshall publicly acknowledged he expected a closer race, as the contest continued to attract national spending and media coverage.

    Kansas Senate race: U.S. Sen. Roger Marshall expects a closer ... · Oct 8, 2026 (opens in a new tab)
  7. Oct 7
    controversy
    Hamilton's '$50 medical bill' ad goes viral, putting Marshall on defense

    An ad from Hamilton's campaign featuring a patient who said she was arrested while pregnant after missing a $50 payment to Marshall's practice drew widespread attention and put Marshall on the defensive.

    How $50 blew up Kansas’ Senate race · Oct 7, 2026 (opens in a new tab)
  8. Oct 6
    news
    Cook Political Report moves Kansas Senate race to 'Toss Up'

    Cook Political Report shifted its rating of the Kansas Senate race to 'Toss Up,' reflecting the competitive polling and national attention the race had drawn.

    Deep-red Kansas is suddenly a Senate battleground · Oct 6, 2026 (opens in a new tab)
  9. Oct 3
    poll
    NYT/Siena poll shows Marshall and Hamilton tied at 45% each in Kansas Senate race

    A New York Times/Siena poll of 605 likely voters surveyed September 21–October 1 found Hamilton and Marshall each at 45%, with Libertarian David Graham at 3%, confirming the race as a dead heat.

    NYTimes/Siena Poll of Likely Voters – Senate Races · Oct 3, 2026 (opens in a new tab)
  10. Oct 2
    news
    Senate Leadership Fund reserves $8M+ in ads to support Marshall in Kansas

    Politico reported that the Senate Leadership Fund, a Republican outside spending group, reserved more than $8 million in advertising to support Marshall, signaling the race had become a genuine battleground.

    Kansas enters the chat as Senate map tilts further into red territory · Oct 2, 2026 (opens in a new tab)
  11. Sep 30
    endorsement
    Former Kansas GOP governor Bill Graves and Marshall's ex-primary opponent endorse Hamilton

    CBS News reported that former Kansas Republican Governor Bill Graves and Marshall's former GOP primary opponent Arch Naramore crossed party lines to endorse Democrat Adam Hamilton. VP JD Vance was reported to have campaigned with Marshall.

    Republican-turned-Democrat aims to flip Kansas Senate ... · Sep 30, 2026 (opens in a new tab)
  12. Sep 29
    controversy
    Marshall's lawyers accuse Hamilton campaign of defamation over medical-debt patient ad

    Marshall's lawyers sent a defamation allegation to Hamilton's campaign over an ad featuring a former patient who said she was arrested while pregnant after missing a $50 payment. Hamilton's campaign did not pull the ad.

    Sen. Roger Marshall alleges defamation by ad about former Kansas ... · Sep 29, 2026 (opens in a new tab)
  13. Sep 24
    controversy
    Kansas Reflector summarizes NYT reporting on Marshall practice suing 700+ patients

    The Kansan summarized the New York Times investigation, reporting that Marshall's former medical practice sued more than 700 patients over unpaid bills and that 81 people were arrested after missing court dates.

    Sen. Marshall's medical practice sued over 700 patients for unpaid ... · Sep 24, 2026 (opens in a new tab)
  14. Sep 18
    endorsement
    Trump endorses Roger Marshall for reelection to U.S. Senate

    Donald Trump posted his endorsement of Marshall, stating 'Roger Marshall has my Complete and Total Endorsement' for reelection as U.S. Senator from Kansas.

    Donald J. Trump: "Roger Marshall has my Complete and Total Endorsement for Re-Election as U.S.... - Trump’s Truth · Sep 18, 2026 (opens in a new tab)
  15. Sep 16
    controversy
    Report: Marshall's medical practice sued over 700 patients for unpaid medical bills

    Reporting circulated widely that Marshall's former medical practice had sued over 700 patients over unpaid medical bills, drawing national attention to the controversy.

    Roger Marshall's Practice Sued 700 Patients Over Medical Debt · Sep 16, 2026 (opens in a new tab)
  16. Sep 12
    debate
    Marshall and Hamilton debate at Kansas State Fair in Hutchinson

    Marshall and Hamilton debated before a vocal audience at the Kansas State Fair. Topics included immigration, agriculture, Trump administration policies, and the proposed $5,000 'Trump Dividend.' Marshall backed Trump's immigration policies and attributed beef-industry problems to drought, herd size, and regulation.

    Kansas Senate candidates tangle over Trump, agriculture and ... · Sep 13, 2026 (opens in a new tab)
  17. Sep 12
    debate
    Marshall backtracks on support for $5,000 Trump Dividend at State Fair debate

    At the debate, Marshall distanced himself from the Trump Dividend proposal, saying 'I'm going to bring in all the information, and then make a decision,' and acknowledged it was 'not the first time I've disagreed with President Trump.'

    Sen. Roger Marshall Backtracks on Support for $5,000 Trump ... · Sep 12, 2026 (opens in a new tab)
  18. Sep 8
    controversy
    NYT investigation: Marshall's medical practice sued 700+ patients over unpaid bills, 81 arrested

    The New York Times reported that Marshall's former medical practice sued more than 700 patients over unpaid bills, with 81 people arrested after missing court dates related to the lawsuits.

    Sen. Marshall's medical practice sued over 700 patients for unpaid ... · Sep 24, 2026 (opens in a new tab)

Endorsements

  • Senate Conservatives Fund organization
    Listed Marshall on its 2026 endorsements page; specific announcement date not established in cited material.
  • Kansas Family Voice organization
    Listed Marshall in its 2026 endorsements and voter guide; no specific date stated. kansasfamilyvoice.com
  • AIPAC organization
    AIPAC's political portal listed Marshall, but no announcement date is established in the cited material.
  • NRA organization
    Listed among Marshall's endorsements in a secondary endorsement roundup; no directly dated announcement or primary source established in cited material.
  • Conservative Political Action Conference (CPAC) organization
    CPAC endorsed Marshall for U.S. Senate. · Sep 19, 2026
  • JD Vance, Vice President of the United States official
    Vance made a campaign appearance in Kansas for Marshall, as reported by Great Bend Post/Tribune. · Sep 15, 2026
  • Teamsters Local 696 union
    The International Brotherhood of Teamsters published a release specifically announcing Local 696's endorsement of Marshall for re-election. teamster.org · Sep 8, 2026
  • International Brotherhood of Teamsters and Teamsters Local 696 union
    Marshall's campaign announced the endorsement; Fox News also reported Teamsters General President Sean O'Brien's endorsement. kansansformarshall.com · Sep 3, 2026
  • Teamsters General President Sean O'Brien union
    O'Brien personally endorsed Marshall, as reported by Fox News. foxnews.com · Sep 3, 2026
  • Kansas Farm Bureau's VOTE FBF organization
    The Kansas Farm Bureau's PAC announced its endorsement of Marshall for reelection. kfb.org · Aug 26, 2026
  • SMART union
    SMART co-endorsed both Marshall and Democratic nominee Adam Hamilton; this was not an exclusive endorsement of Marshall. · Aug 17, 2026
  • Brotherhood of Locomotive Engineers and Trainmen (BLET) union
    BLET leaders met with Marshall and the endorsement is listed in the election's endorsement record. ble-t.org · Aug 4, 2026
  • Donald Trump, President of the United States official
    Trump endorsed Marshall along with Kansas Republicans Derek Schmidt and Tracey Mann, as reported by the Topeka Capital-Journal. · Jul 9, 2025

Past elections

General election results for federal office, from the Federal Election Commission.

YearSeatResultVotesShare
2020U.S. Senate KS · RWon727,96253.2%
2018U.S. House KS-01 · R Won153,08268.1%
2016U.S. House KS-01 · R Won169,99265.9%

Covers the 2016 to 2022 general elections. The FEC has not yet published 2024 congressional results.

Campaign finance

Totals filed with the Federal Election Commission for the 2026 election cycle.

Raised
$6.21M
Spent
$1.03M
Cash on hand
$5.39M

As of Jul 15, 2026. Filings are periodic, so recent money may not be included yet. ↳ FEC record S0KS00315(opens in a new tab)

Sources 34

  1. [1] Marshall charged 18% on medical bills — more than most Kansas doctors who sued(opens in a new tab) Oct 11, 2026
  2. [2] Healthcare, energy, tariffs top Kansas .U.S. Senate race - Yahoo(opens in a new tab) Oct 10, 2026
  3. [3] Sen. Roger Marshall's history of blurring the line between taxpayer dollars and campaign cash(opens in a new tab) Oct 10, 2026
  4. [4] Democrats drop $5M into Kansas Senate race(opens in a new tab) Oct 9, 2026
  5. [5] Kansas Senate race heats up as Marshall, Hamilton clash ... - Yahoo(opens in a new tab) Oct 8, 2026
  6. [6] Kansas Senate race: U.S. Sen. Roger Marshall expects a closer ...(opens in a new tab) Oct 8, 2026
  7. [7] How $50 blew up Kansas’ Senate race(opens in a new tab) Oct 7, 2026
  8. [8] Deep-red Kansas is suddenly a Senate battleground(opens in a new tab) Oct 6, 2026
  9. [9] News | Brotherhood of Locomotive Engineers and Trainmen(opens in a new tab) Oct 6, 2026
  10. [10] Endorsements & Voter Guide - Kansas Family Voice(opens in a new tab) Oct 5, 2026
  11. [11] NYTimes/Siena Poll of Likely Voters – Senate Races(opens in a new tab) Oct 3, 2026
  12. [12] Kansas enters the chat as Senate map tilts further into red territory(opens in a new tab) Oct 2, 2026
  13. [13] Republican-turned-Democrat aims to flip Kansas Senate ...(opens in a new tab) Sep 30, 2026
  14. [14] Sen. Roger Marshall alleges defamation by ad about former Kansas ...(opens in a new tab) Sep 29, 2026
  15. [15] Sen. Marshall's medical practice sued over 700 patients for unpaid ...(opens in a new tab) Sep 24, 2026
  16. [16] Donald J. Trump: "Roger Marshall has my Complete and Total Endorsement for Re-Election as U.S.... - Trump’s Truth(opens in a new tab) Sep 18, 2026
  17. [17] Roger Marshall's Practice Sued 700 Patients Over Medical Debt(opens in a new tab) Sep 16, 2026
  18. [18] Kansas Senate candidates tangle over Trump, agriculture and ...(opens in a new tab) Sep 13, 2026
  19. [19] Sen. Roger Marshall Backtracks on Support for $5,000 Trump ...(opens in a new tab) Sep 12, 2026
  20. [20] Teamsters Local 696 Endorses Sen. Marshall for Re-Election(opens in a new tab) Sep 8, 2026
  21. [21] International Brotherhood of Teamsters Endorses Senator ...(opens in a new tab) Sep 3, 2026
  22. [22] Teamsters' Sean O'Brien endorses Sen Roger Marshall for ...(opens in a new tab) Sep 3, 2026
  23. [23] Senator Marshall: Our Bill Will Bring Down the Cost of Healthcare by $1,000 a Month - Senator Roger Marshall(opens in a new tab) Jul 23, 2026
  24. [24] Senator Marshall: America is Not the World’s Babysitter: Europe Needs to Step Up - Senator Roger Marshall(opens in a new tab) Jul 8, 2026
  25. [25] Senator Marshall Applauds Senate Passage of ROAD to Housing Act(opens in a new tab) Jun 23, 2026
  26. [26] Senator Marshall: The Economy in Kansas is Set & Primed - Senator Roger Marshall(opens in a new tab) Jun 23, 2026
  27. [27] Senator Marshall: More Americans are Getting a Tax Refund This Year - Senator Roger Marshall(opens in a new tab) Apr 15, 2026
  28. [28] Senator Marshall: Democrats Refuse to Secure Our Elections(opens in a new tab) Mar 11, 2026
  29. [29] Senator Marshall: Education is the Backbone of America - Senator Roger Marshall(opens in a new tab) Jan 28, 2026
  30. [30] News Releases(opens in a new tab) Jan 9, 2026
  31. [31] Senator Marshall Cosponsors Legislation to Enhance Officer Safety - Senator Roger Marshall(opens in a new tab) Dec 5, 2025
  32. [32] Senator Marshall: We Are Going to Prevent the Largest Tax Increase in American History - Senator Roger Marshall(opens in a new tab) Jun 12, 2025
  33. [33] Senator Marshall Reintroduces SHORT Act to Roll Back ...(opens in a new tab) Mar 28, 2025
  34. [34] Ingenuity and Innovation in Kansas Produce Clean Energy and ...(opens in a new tab) Jan 6, 2023
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