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U.S. Senator from Kansas

Roger Marshall

Republican · Kansas

OB/GYN physician and former House member, elected to Senate in 2020. Focus on agriculture, healthcare, energy, and conservative values from physician perspective.

Record

Staunch conservative physician. Opposes ACA from medical perspective while supporting certain health policy reforms. Strong agricultural advocate for Kansas farmers. Anti-abortion position as OB/GYN.

Legislative Record

Recently sponsored bills (8 on record)

  • S.5156 — A bill to amend the Internal Revenue Code of 1986 to provide for in-service rollovers for individual retirement annuity purchases, and for other purposes. (Introduced, Jul 29, 2026)
  • S.5030 — TRUTH in Coverage Act of 2026 (Introduced, Jul 16, 2026)
  • S.4964 — Protecting Innocent Taxpayers from Endless Assessments Act (Introduced, Jul 14, 2026)
    Protecting Innocent Taxpayers from Endless Assessments Act This bill limits the amount of time the Internal Revenue Service (IRS) has to assess taxes related to fraudulent or false federal tax returns where there is no intent by the taxpayer to evade taxes. As background, the IRS generally has three…
  • S.4628 — A bill to direct the Secretary of Agriculture to establish an initiative to address the availability, quality, and cost of childcare in rural areas, and for other purposes. (Introduced, May 21, 2026)
    This bill requires the Department of Agriculture (USDA) to establish the Expanding Childcare in Rural America Initiative to prioritize certain loans and grants that address childcare in rural areas. Under the bill, childcare includes eligible programs that provide quality care and early education…
  • S.4604 — Protecting America’s Small Oil and Gas Producers and Rural Jobs Act (Introduced, May 20, 2026)
  • S.4507 — Bereaved Parents Rights Act (Introduced, May 13, 2026)
  • S.4479 — ACCESS Act (Introduced, Apr 30, 2026)
  • S.4426 — STOP Act (Introduced, Apr 29, 2026)

Notable votes

  • Voted Yea on S.Res. 817 — S. Res. 817 (Resolution Agreed to, Jul 30, 2026)
  • Voted Yea on S.Res. 817 — Motion to Invoke Cloture: S. Res. 817 (Cloture Motion Agreed to, Jul 29, 2026)
  • Voted Yea on H.R. 6644 — Motion to Invoke Cloture: Motion to Concur in the House Amendment to the Senate Amendment to H.R. 6644 with an Amendment (SA 5823) (Cloture Motion Agreed to, Jun 18, 2026)
  • Voted Yea on S. 2 — S. 2, As Amended (Bill Passed, Jun 5, 2026)
  • Voted Nay on S. 2 — Cortez Masto Amdt. No. 5463 (Amendment Rejected, Jun 5, 2026)
  • Voted Nay on S. 2 — Padilla Amdt. No. 5808 (Amendment Rejected, Jun 5, 2026)
  • Voted Nay on S. 2 — Gallego Amdt. No. 5813 (Amendment Rejected, Jun 5, 2026)
  • Voted Nay on S. 2 — Peters Amdt. No. 5763 (Amendment Rejected, Jun 5, 2026)

Recently cosponsored bills (12 on record)

  • S.5180 — A bill to amend title XVIII of the Social Security Act to ensure stability for provider payments under the Medicare program. (Introduced, Jul 30, 2026)
  • S.5157 — A bill to promote the use of accessible, seamless, intrastate data available through robust, secure, and tailored statewide longitudinal data systems, and for other purposes. (Introduced, Jul 29, 2026)
  • S.5164 — A bill to amend titles XVIII and XIX of the Social Security Act to make improvements relating to the designation of rural emergency hospitals. (Introduced, Jul 29, 2026)
  • S.2909 — Seasonal Agriculture CDL Modernization Act (Introduced, Jul 27, 2026)
  • S.5113 — State of Men’s Health Act (Introduced, Jul 23, 2026)
  • S.3778 — Carbon Resource Innovation Act (Introduced, Jul 20, 2026)
  • S.4952 — Protecting American Taxpayers Act (Introduced, Jul 20, 2026)
  • S.2955 — Forced Abortion Prevention and Accountability Act (Introduced, Jul 15, 2026)

Voting analysis

Roger Marshall practised medicine before the Senate and chairs the health subcommittee on primary care and retirement security, along with an agriculture subcommittee on conservation and biotechnology. Health leads what he files.

Sponsored bills carry the Congressional Research Service's own subject classification. Roger Marshall's cluster into: Health (4), Taxation (1).

A surveillance bill he tried to rewrite himself

Six of his departures concern one surveillance reauthorisation. He voted against the bill at passage, and supported five separate amendments to it — from a Republican colleague, from two Democrats, from another Republican, and one that he had offered himself. Every amendment failed and the bill passed.

Sponsoring an amendment to a bill and then voting against the bill is the clearest available evidence that a member wanted something specific and did not get it. Most defection records do not let you see the member's own proposal sitting inside them.

6.9%
Votes against the Republican majority
217
Roll calls where a party majority formed
19 of 51
Rank among Senate Republicans, most defections first
The 10 most recent of 15 roll calls where Roger Marshall voted against the Senate Republican majority.
Roll callDateOutcomeTheir vote
S. 2296
Paul Amdt. No. 3761
On the Amendment S.Amdt. 3761 to S.Amdt. 3748 to S. 2296 (No short title on file) · roll call 119		Oct 9, 2025Amendment RejectedYea (party: Nay)
H.R. 3944
Johnson Amdt. No. 3428
On the Amendment S.Amdt. 3428 to S.Amdt. 3411 to H.R. 3944 (No short title on file) · roll call 119		Aug 1, 2025Amendment RejectedYea (party: Nay)
H.R. 9747
On Passage of the Bill H.R. 9747 · roll call 118		Sep 25, 2024Bill PassedNay (party: Yea)
H.R. 815
Motion to Invoke Cloture: Motion to Concur in the House Amdt to the Senate Amdt to H.R. 815
On the Cloture Motion H.R. 815 · roll call 118		Apr 23, 2024Cloture Motion Agreed toNay (party: Yea)
H.R. 7888
On Passage of the Bill H.R. 7888 · roll call 118		Apr 19, 2024Bill PassedNay (party: Yea)
H.R. 7888
Lee Amdt No. 1840
On the Amendment S.Amdt. 1840 to H.R. 7888 (No short title on file) · roll call 118		Apr 19, 2024Amendment RejectedYea (party: Nay)
H.R. 7888
Durbin Amdt No. 1841 as Modified
On the Amendment S.Amdt. 1841 to H.R. 7888 (No short title on file) · roll call 118		Apr 19, 2024Amendment RejectedYea (party: Nay)
H.R. 7888
Paul Amdt No. 1828
On the Amendment S.Amdt. 1828 to H.R. 7888 (No short title on file) · roll call 118		Apr 19, 2024Amendment RejectedYea (party: Nay)
H.R. 7888
Wyden Amdt No. 1820
On the Amendment S.Amdt. 1820 to H.R. 7888 (No short title on file) · roll call 118		Apr 19, 2024Amendment RejectedYea (party: Nay)
H.R. 7888
Marshall Amdt No. 1834
On the Amendment S.Amdt. 1834 to H.R. 7888 (No short title on file) · roll call 118		Apr 19, 2024Amendment RejectedYea (party: Nay)

Above the Kansas average

Kansas returns two Republican senators, and Marshall is the more frequent departer of the two by a clear margin.

Among the 2 Republicans in the Kansas delegation, the average rate of voting against the party majority is 6.5%. Roger Marshall is above that average at 6.9%.

The filings

In-service rollovers for retirement annuity purchases, a coverage transparency act, protection from endless tax assessments, an initiative on the availability and cost of rural childcare, and a measure for small oil and gas producers. Rural health and rural economics run through most of them.

522
Bills sponsored
1833
Bills cosponsored

Of the 8 most recent of those, 8 currently sit at Introduced.

Tenure and attendance

House service before this seat carries him into the middle tenure band. He misses a small share of votes.

First elected in 2017, now serving across 5 terms. Roger Marshall falls in the mid cohort.

1.4%
Roll calls recorded as not voting
220
Roll calls eligible to vote on
3
Recorded as not voting

By the numbers

In the 119th Congress, Roger Marshall has 522 bills sponsored, 1833 cosponsored, 8 recent floor votes recorded.

Committee assignments

  • Senate Committee on Agriculture, Nutrition, and Forestry
  • Senate Committee on Finance
  • Senate Committee on Health, Education, Labor, and Pensions
  • Senate Committee on the Budget
  • Senate Committee on Agriculture, Nutrition, and Forestry: Conservation, Forestry, Natural Resources, and Biotechnology (Chairman)
  • Senate Committee on Agriculture, Nutrition, and Forestry: Food and Nutrition, Specialty Crops, Organics, and Research
  • Senate Committee on Finance: Energy, Natural Resources, and Infrastructure
  • Senate Committee on Finance: Health Care
  • Senate Committee on Finance: International Trade, Customs, and Global Competitiveness
  • Senate Committee on Health, Education, Labor, and Pensions: Employment and Workplace Safety
  • Senate Committee on Health, Education, Labor, and Pensions: Primary Health and Retirement Security (Chairman)

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