Alex Padilla

Senator · CA · D

Current term Jan 3, 2023 – Jan 3, 2029 · In the Senate since Jan 20, 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.

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Alex Padilla

Senator · CA · D

Current term Jan 3, 2023 – Jan 3, 2029 · In the Senate since Jan 20, 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

36%

36 of 101 bills they sponsored had at least one original cosponsor from the other party.

Senate median 41% · Democrats 35%

Cosponsoring the other party's bills

18%

92 of 503 bills they cosponsored were introduced by a Republican.

Senate median 19% · Democrats 22%

Voting with own party

98%

On 811 party-line votes, voted with most Democrats 797 times.

Senate median 99% · Democrats 96%

Voting with the other party

On 862 contested votes, voted the same way as most Republicans 43 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

Adam B. SchiffDCA20 of theirs · 49 of this member's
Cory A. BookerDNJ27 of theirs · 27 of this member's
Edward J. MarkeyDMA33 of theirs · 20 of this member's
Richard BlumenthalDCT21 of theirs · 22 of this member's
Jeff MerkleyDOR20 of theirs · 20 of this member's
Elizabeth WarrenDMA17 of theirs · 19 of this member's
Mazie K. HironoDHI13 of theirs · 21 of this member's
Bernard SandersIVT16 of theirs · 15 of this member's
Richard J. DurbinDIL18 of theirs · 12 of this member's
Patty MurrayDWA17 of theirs · 10 of this member's

Across the aisle (Republicans)

Tim SheehyRMT5 of theirs · 9 of this member's
Thom TillisRNC10 of theirs · 4 of this member's
John R. CurtisRUT4 of theirs · 7 of this member's
Todd YoungRIN8 of theirs · 3 of this member's
Mike CrapoRID7 of theirs · 2 of this member's
Lisa MurkowskiRAK4 of theirs · 4 of this member's

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

Cory A. BookerDNJ97% · 797 of 821
Ron WydenDOR97% · 820 of 846
Elizabeth WarrenDMA96% · 820 of 852
Edward J. MarkeyDMA96% · 822 of 856
Lisa Blunt RochesterDDE96% · 822 of 857

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. 32LACA
Original cosponsor · sponsored by Ted Cruz · original backers: 1 D, 1 R · became law Sep 16, 2026
Became lawS. 4530A bill to amend chapters 83 and 84 of title 5, United States Code, to authorize an increase of the retirement age for members of the Capitol Police.
Original cosponsor · sponsored by Mitch McConnell · original backers: 1 D, 1 R · became law May 29, 2026
Became lawS. 3705Semiquincentennial Congressional Time Capsule Act
Original cosponsor · sponsored by Thom Tillis · original backers: 2 D, 2 R · became law Feb 18, 2026
Passed the SenateS. 5045Wildfire Emissions Prevention Act of 2026
Original cosponsor · sponsored by John R. Curtis · original backers: 3 D, 3 R · passed the Senate Sep 29, 2026
Passed the SenateS. 2934Protecting Americans from Russian Litigation Act of 2025
Original cosponsor · sponsored by · original backers: 1 D, 1 R · passed the Senate Apr 28, 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, 6:07 PM ET from Congress.gov and House and Senate roll calls.

119th Congress, Senate.

Bills with other-party backing

36%

36 of 101 bills they sponsored had at least one original cosponsor from the other party.

Senate median 41% · Democrats 35%

Cosponsoring the other party's bills

18%

92 of 503 bills they cosponsored were introduced by a Republican.

Senate median 19% · Democrats 22%

Voting with own party

98%

On 811 party-line votes, voted with most Democrats 797 times.

Senate median 99% · Democrats 96%

Voting with the other party

On 862 contested votes, voted the same way as most Republicans 43 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

Adam B. SchiffDCA20 of theirs · 49 of this member's
Cory A. BookerDNJ27 of theirs · 27 of this member's
Edward J. MarkeyDMA33 of theirs · 20 of this member's
Richard BlumenthalDCT21 of theirs · 22 of this member's
Jeff MerkleyDOR20 of theirs · 20 of this member's
Elizabeth WarrenDMA17 of theirs · 19 of this member's
Mazie K. HironoDHI13 of theirs · 21 of this member's
Bernard SandersIVT16 of theirs · 15 of this member's
Richard J. DurbinDIL18 of theirs · 12 of this member's
Patty MurrayDWA17 of theirs · 10 of this member's

Across the aisle (Republicans)

Tim SheehyRMT5 of theirs · 9 of this member's
Thom TillisRNC10 of theirs · 4 of this member's
John R. CurtisRUT4 of theirs · 7 of this member's
Todd YoungRIN8 of theirs · 3 of this member's
Mike CrapoRID7 of theirs · 2 of this member's
Lisa MurkowskiRAK4 of theirs · 4 of this member's

Voting most alike

Most alike

Cory A. BookerDNJ97% · 797 of 821
Ron WydenDOR97% · 820 of 846
Elizabeth WarrenDMA96% · 820 of 852
Edward J. MarkeyDMA96% · 822 of 856
Lisa Blunt RochesterDDE96% · 822 of 857

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. 32LACA
Original cosponsor · sponsored by Ted Cruz · original backers: 1 D, 1 R · became law Sep 16, 2026
Became lawS. 4530A bill to amend chapters 83 and 84 of title 5, United States Code, to authorize an increase of the retirement age for members of the Capitol Police.
Original cosponsor · sponsored by Mitch McConnell · original backers: 1 D, 1 R · became law May 29, 2026
Became lawS. 3705Semiquincentennial Congressional Time Capsule Act
Original cosponsor · sponsored by Thom Tillis · original backers: 2 D, 2 R · became law Feb 18, 2026
Passed the SenateS. 5045Wildfire Emissions Prevention Act of 2026
Original cosponsor · sponsored by John R. Curtis · original backers: 3 D, 3 R · passed the Senate Sep 29, 2026
Passed the SenateS. 2934Protecting Americans from Russian Litigation Act of 2025
Original cosponsor · sponsored by · original backers: 1 D, 1 R · passed the Senate Apr 28, 2026

Alex Padilla

Working relationships

Alex Padilla

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