Ben Ray Luján

Senator · NM · D

Current term Jan 3, 2021 – Jan 3, 2027 · In the Senate since Jan 3, 2021

Official website Contact form Biographical Directory

Portrait: U.S. Government Publishing Office, via unitedstates/images (public domain)

Working relationships

How often this member works with colleagues across party lines, from bill sponsorships and recorded votes in this Congress. Bills are H.R., S., H.J.Res. and S.J.Res.; resolutions, post office namings, and Congressional Gold Medal and commemorative coin bills are left out. Independents are counted with the party they caucus with. These figures describe the public record; they do not measure effectiveness or ideology.

Ben Ray Luján · ChamberLens.org

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Ben Ray Luján

Senator · NM · D

Current term Jan 3, 2021 – Jan 3, 2027 · In the Senate since Jan 3, 2021

Official website Contact form Biographical Directory

Portrait: U.S. Government Publishing Office, via unitedstates/images (public domain)

Working relationships

119th Congress, Senate.

Bills with other-party backing

35%

29 of 84 bills they sponsored had at least one original cosponsor from the other party.

Senate median 41% · Democrats 35%

Cosponsoring the other party's bills

28%

110 of 391 bills they cosponsored were introduced by a Republican.

Senate median 19% · Democrats 22%

Voting with own party

98%

On 828 party-line votes, voted with most Democrats 808 times.

Senate median 99% · Democrats 96%

Voting with the other party

On 881 contested votes, voted the same way as most Republicans 64 times.

Senate median 6% · Democrats 8%

Closest collaborators

Counted both ways: bills by the colleague that this member cosponsored, and bills by this member that the colleague cosponsored.

All colleagues

Martin HeinrichDNM17 of theirs · 24 of this member's
Edward J. MarkeyDMA17 of theirs · 9 of this member's
Ron WydenDOR16 of theirs · 9 of this member's
Jeff MerkleyDOR10 of theirs · 14 of this member's
Richard BlumenthalDCT14 of theirs · 8 of this member's
Alex PadillaDCA12 of theirs · 9 of this member's
Catherine Cortez MastoDNV13 of theirs · 8 of this member's
Cory A. BookerDNJ11 of theirs · 9 of this member's
Chris Van HollenDMD11 of theirs · 8 of this member's
Elizabeth WarrenDMA9 of theirs · 8 of this member's

Across the aisle (Republicans)

John CornynRTX12 of theirs · 5 of this member's
Marsha BlackburnRTN9 of theirs · 3 of this member's
Bill CassidyRLA8 of theirs · 1 of this member's
Chuck GrassleyRIA6 of theirs · 1 of this member's
Todd YoungRIN6 of theirs · 1 of this member's
Lisa MurkowskiRAK

Voting most alike

Contested roll calls (at least 10% of yea and nay votes on the losing side) on which both voted yea or nay, and how often they made the same choice. Colleagues who shared too few of these votes with this member are not ranked.

Most alike

Jon OssoffDGA96% · 805 of 835
Patty MurrayDWA96% · 803 of 833
Angela D. AlsobrooksDMD96% · 832 of 867
Martin HeinrichDNM96% · 813 of 848
Tina SmithDMN96% · 804 of 840

Bipartisan bills that advanced

Bills this member sponsored or joined as an original cosponsor, with original backers from both parties, that passed at least one chamber (11). Furthest along first.

Became lawS. 629Emergency Conservation Program Improvement Act of 2025
Original cosponsor · sponsored by Deb Fischer · original backers: 2 D, 1 R · became law Jul 12, 2026
Passed the SenateS. 1962Secure Space Act of 2026
Original cosponsor · sponsored by Deb Fischer · original backers: 1 D, 1 R · passed the Senate Sep 23, 2026
Passed the SenateS. 2120Older Americans Act Reauthorization Act of 2025
Original cosponsor · sponsored by Bill Cassidy · original backers: 5 D, 5 R · passed the Senate Jul 14, 2026
Passed the SenateS. 4460Rural Community Hospital Demonstration Program Reauthorization
Original cosponsor · sponsored by Chuck Grassley · original backers: 8 D, 8 R · passed the Senate May 20, 2026
Passed the SenateS. 3199988 Lifeline Location Improvement Act of 2026
Original cosponsor · sponsored by John Barrasso · original backers: 5 D, 7 R · passed the Senate May 11, 2026

Each member's party on each date comes from congress-legislators term records. Party-line votes are roll calls on which most voting Democrats and most voting Republicans took opposite sides; procedural votes are included. The Vice President's tie-breaking votes and impeachment verdicts are not counted, and a bill enacted as part of another bill counts only at the stage it reached on its own. Medians include everyone who served in the chamber this Congress with enough records (5 sponsored bills, 10 cosponsorships, 25 votes). Computed Oct 23, 2026, 11:51 AM ET from Congress.gov and House and Senate roll calls.

119th Congress, Senate.

Bills with other-party backing

35%

29 of 84 bills they sponsored had at least one original cosponsor from the other party.

Senate median 41% · Democrats 35%

Cosponsoring the other party's bills

28%

110 of 391 bills they cosponsored were introduced by a Republican.

Senate median 19% · Democrats 22%

Voting with own party

98%

On 828 party-line votes, voted with most Democrats 808 times.

Senate median 99% · Democrats 96%

Voting with the other party

On 881 contested votes, voted the same way as most Republicans 64 times.

Senate median 6% · Democrats 8%

Closest collaborators

Counted both ways: bills by the colleague that this member cosponsored, and bills by this member that the colleague cosponsored.

All colleagues

Martin HeinrichDNM17 of theirs · 24 of this member's
Edward J. MarkeyDMA17 of theirs · 9 of this member's
Ron WydenDOR16 of theirs · 9 of this member's
Jeff MerkleyDOR10 of theirs · 14 of this member's
Richard BlumenthalDCT14 of theirs · 8 of this member's
Alex PadillaDCA12 of theirs · 9 of this member's
Catherine Cortez MastoDNV13 of theirs · 8 of this member's
Cory A. BookerDNJ11 of theirs · 9 of this member's
Chris Van HollenDMD11 of theirs · 8 of this member's
Elizabeth WarrenDMA9 of theirs · 8 of this member's

Across the aisle (Republicans)

John CornynRTX12 of theirs · 5 of this member's
Marsha BlackburnRTN9 of theirs · 3 of this member's
Bill CassidyRLA8 of theirs · 1 of this member's
Chuck GrassleyRIA6 of theirs · 1 of this member's
Todd YoungRIN6 of theirs · 1 of this member's
Lisa MurkowskiRAK

Voting most alike

Most alike

Jon OssoffDGA96% · 805 of 835
Patty MurrayDWA96% · 803 of 833
Angela D. AlsobrooksDMD96% · 832 of 867
Martin HeinrichDNM96% · 813 of 848
Tina SmithDMN96% · 804 of 840

Bipartisan bills that advanced

Bills this member sponsored or joined as an original cosponsor, with original backers from both parties, that passed at least one chamber (11). Furthest along first.

Became lawS. 629Emergency Conservation Program Improvement Act of 2025
Original cosponsor · sponsored by Deb Fischer · original backers: 2 D, 1 R · became law Jul 12, 2026
Passed the SenateS. 1962Secure Space Act of 2026
Original cosponsor · sponsored by Deb Fischer · original backers: 1 D, 1 R · passed the Senate Sep 23, 2026
Passed the SenateS. 2120Older Americans Act Reauthorization Act of 2025
Original cosponsor · sponsored by Bill Cassidy · original backers: 5 D, 5 R · passed the Senate Jul 14, 2026
Passed the SenateS. 4460Rural Community Hospital Demonstration Program Reauthorization
Original cosponsor · sponsored by Chuck Grassley · original backers: 8 D, 8 R · passed the Senate May 20, 2026
Passed the SenateS. 3199988 Lifeline Location Improvement Act of 2026
Original cosponsor · sponsored by John Barrasso · original backers: 5 D, 7 R · passed the Senate May 11, 2026

Ben Ray Luján

Working relationships

Ben Ray Luján

Working relationships

Closest collaborators

All colleagues

Across the aisle (Republicans)

Voting most alike

Most alike

Bipartisan bills that advanced

Closest collaborators

All colleagues

Across the aisle (Republicans)

Voting most alike

Most alike

Bipartisan bills that advanced

Most alike among Republicans