Roger Wayne Marshall is an American politician, physician, and former military officer serving as the junior United States senator from Kansas since 2021. A member of the Republican Party, he served from 2017 to 2021 as the U.S. representative for Kansas's 1st congressional district, a mostly rural district covering much of the western and northern parts of the state.
Raised
$0
Spent
$0
Outside spending
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40 votes · cycle 2024 · Mar 30, 2026
Some data sources have not been ingested for this politician.
Funding Transparency
Minor flags$323,512 in outside spending on record.
Vote Independence
Minor flagsVotes with Republicans 96% of the time — 10 breaks from the majority across 241 roll calls.
Timing Patterns
No flagsLobby Influence
Moderate concernLobby-donate overlap: 7 dual-path registrants — $18,000 in overlapping contributions.
Peer Standing
Moderate concernOutlier among Senate Republican (n=65) on Outside spend ratio — max deviation 2.1 sigma from peer average.
Outside spending
low194 filings — 194 support, 0 oppose
$323,512 in outside spending on record.
Stands out from peers
mediumCompared to 65 other Senate Republican members
Party alignment
How often this politician sides with their party on roll calls where the party mostly agreed.
Legislative focus
Funding sources
Lobbying activity
665clients
665 bill references on record · 665 linked to specific bills
American Kratom Association
Filed by Lobbyit.Com
American Kratom Association
Filed by Penn Avenue Partners
American Kratom Association
Filed by The Majority Group, LLC
American Kratom Association
Filed by Upstream Consulting, Inc.
American Kratom Association
Filed by Downs Government Affairs
American Superconductor
Filed by Longbow Public Policy Group, Llc
American Superconductor
Filed by Lemunyon Group, LLC
American Superconductor
Filed by Sbl Strategies, Llc
American Superconductor
Filed by Pike Associates Llc
American Superconductor
Filed by Florida Sugar Cane League
Source: federal lobbying disclosures and congressional vote records.
49 bills voted on · 13 lobbied
Voted on by
Aaron Bean
Abigail Davis Spanberger
Adam B. Schiff
Adam Smith
+529 more
Lobbied by
American Kratom Association
American Superconductor
Coalition For Responsible Waste Incineration
Coalition For Student Opportunity And Success
+9 more
Voted on by
Adam B. Schiff
Alex Padilla
Amy Klobuchar
Andy Kim
+96 more
Lobbied by
American Superconductor
Coalition For Responsible Waste Incineration
Electra Aero, Inc.
General Atomics Electromagnetic Systems, Inc.
+7 more
Voted on by
Aaron Bean
Abraham J. Hamadeh
Adam B. Schiff
Adam Gray
+534 more
Lobbied by
Commercial Vehicle Safety Alliance
Exelixis, Inc.
National Association Of Small Trucking Companies
Rtx Corporation And Affiliates (Fkaraytheon Technologies Corporation)
+1 more
Voted on by
Aaron Bean
Abraham J. Hamadeh
Adam B. Schiff
Adam Gray
+528 more
Lobbied by
Bb Living
City Of Santa Clara
Dignitymoves
Voted on by
Adam B. Schiff
Alex Padilla
Amy Klobuchar
Andy Kim
+96 more
Lobbied by
Greater New York Hospital Association
Voted on by
Alex Padilla
Amy Klobuchar
Angus S. King Jr.
Benjamin L. Cardin
+96 more
Lobbied by
Capitol Strategies Us, Llc On Behalf Of Port Of Everett
Coalition For Responsible Waste Incineration
Voted on by
Adam B. Schiff
Alex Padilla
Amy Klobuchar
Andy Kim
+96 more
Lobbied by
Coalition For Responsible Waste Incineration
Voted on by
Adam B. Schiff
Alex Padilla
Amy Klobuchar
Andy Kim
+96 more
Lobbied by
Coalition For Responsible Waste Incineration
Voted on by
Aaron Bean
Abraham J. Hamadeh
Adam B. Schiff
Adam Gray
+528 more
Lobbied by
Coalition For Responsible Waste Incineration
Voted on by
Adam B. Schiff
Alex Padilla
Amy Klobuchar
Andy Kim
+96 more
Lobbied by
Coalition For Responsible Waste Incineration
Sources and notes
Campaign finance data comes from FEC.gov filings, while available vote records come from Congress.gov and the U.S. Senate roll call feed. Figures stay as reported by those sources. House votes come from Congress.gov. Senate votes come from the official roll call feed. Coverage may be incomplete for some profiles. Recent profile snapshots are reused briefly so repeat views stay fast and consistent.