AB 24 Wisconsin Assembly · 2025-2026 Regular Session

Relating to: county sheriff assistance with certain federal immigration functions. (FE)

AB 24 requires Wisconsin county sheriffs to verify the immigration status of individuals jailed for felony offenses by requesting specific documentation (such as passports, birth records, or immigration documents) to confirm lawful presence in the U.S. If verification fails, sheriffs must notify federal Homeland Security and comply with federal detainer requests. Sheriffs must annually report compliance and maintain records of individuals found unlawfully present, with data shared with the state justice department. Counties failing to comply face a 15% reduction in state funding for the following year. The bill directly affects felony inmates, sheriffs, and state-local funding relationships.

Issues: ✗ Immigration

Bill status vetoed 4 of 5 stages cleared

Introduction

Feb 2025

Committee Review

Jun 2025

Assembly Passage

Mar 2025

Senate Passage

Mar 2026

Vetoed

Apr 2026

Introduced Feb 12, 2025 Vetoed Apr 3, 2026

Maddy AI version diff · 1 comparison

What changed between versions

Bill Text → Text as Enrolled · 3 edits

MINOR

The bill text was reformatted from a standard legislative draft to the official enrolled version, adding publication dates and a note on effective timing. The substantive policy content regarding sheriff duties, penalties, and reporting remains unchanged.

TECHNICAL

Added a header indicating the date of enactment and publication, which triggers the law's effective date under state statutes.

Included a footnote explaining that acts without a specific effective date become law the day after publication.

Replaced the draft title page with the official enrolled title page format and corrected minor formatting inconsistencies in the text.

Floor votes · Assembly Mar 18, 2025

How they voted

This bill passed the Senate by voice vote (no roll call recorded).

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

Apr 3, 2026

Vetoed

Report vetoed by the Governor on 4-3-2026

lower

Mar 17, 2026

Upper · Passed

Read a third time and concurred in

upper

Mar 17, 2026

Amended

Senate Amendment 5 withdrawn and returned to author

upper

Mar 17, 2026

Amended

Senate Amendment 4 withdrawn and returned to author

upper

Mar 17, 2026

Amended

Senate Amendment 3 withdrawn and returned to author

upper

Mar 17, 2026

Amended

Senate Amendment 2 withdrawn and returned to author

upper

Mar 17, 2026

Amended

Senate Amendment 1 withdrawn and returned to author

upper

Mar 17, 2026

Amended

Senate Substitute Amendment 1 rejected, Ayes 19, Noes 14

upper

Mar 17, 2026

Introduced

Senate Amendment 5 offered by Senators Carpenter, Dassler-Alfheim, Drake, Habush Sinykin, Hesselbein, L. Johnson, Keyeski, Larson, Ratcliff, Roys, Spreitzer, Wall and Wirch

upper

Mar 17, 2026

Introduced

Senate Amendment 4 offered by Senators Carpenter, Dassler-Alfheim, Drake, Hesselbein, L. Johnson, Keyeski, Larson, Ratcliff, Roys and Spreitzer

upper

Mar 17, 2026

Introduced

Senate Amendment 3 offered by Senators Carpenter, Dassler-Alfheim, Drake, Habush Sinykin, Hesselbein, L. Johnson, Keyeski, Larson, Ratcliff, Roys, Spreitzer, Wall and Wirch

upper

Mar 17, 2026

Introduced

Senate Amendment 2 offered by Senators Carpenter, Dassler-Alfheim, Drake, Habush Sinykin, Hesselbein, L. Johnson, Keyeski, Larson, Pfaff, Ratcliff, Roys, Smith, Spreitzer, Wall and Wirch

upper

Mar 17, 2026

Introduced

Senate Substitute Amendment 1 offered by Senators Wall, Dassler-Alfheim, Habush Sinykin, Hesselbein, Keyeski, Pfaff, Ratcliff, Roys, Smith and Wirch

upper

Mar 17, 2026

Introduced

Senate Amendment 1 offered by Senators L. Johnson, Carpenter, Dassler-Alfheim, Drake, Habush Sinykin, Hesselbein, Keyeski, Larson, Pfaff, Ratcliff, Roys, Smith, Spreitzer, Wall and Wirch

upper

Jun 12, 2025

Upper · Passed

Report concurrence recommended by Committee on Licensing, Regulatory Reform, State and Federal Affairs, Ayes 3, Noes 2

upper

Mar 18, 2025

Lower · Passed

Read a third time and passed, Ayes 51, Noes 43, Paired 2

lower

Mar 18, 2025

Lower · Passed

Assembly Amendment 1 adopted

lower

Mar 13, 2025

Lower · Passed

Placed on calendar 3-18-2025 by Committee on Rules

lower

Mar 11, 2025

Committee

Referred to committee on Rules

lower

Mar 11, 2025

Lower · Passed

Report passage as amended recommended by Committee on Criminal Justice and Public Safety, Ayes 10, Noes 5

lower

Mar 11, 2025

Lower · Passed

Report Assembly Amendment 1 adoption recommended by Committee on Criminal Justice and Public Safety, Ayes 14, Noes 1

lower

Mar 10, 2025

Introduced

Assembly Amendment 2 offered by Representative Spaude

lower

Mar 7, 2025

Introduced

Assembly Amendment 1 offered by Representatives Vos and Piwowarczyk

lower

Feb 12, 2025

Introduced

Introduced by Representatives Vos, Piwowarczyk, Allen, Armstrong, August, Behnke, Brill, Callahan, Dallman, Dittrich, Donovan, Duchow, Goeben, Green, Gundrum, Hurd, B. Jacobson, Knodl, Kreibich, Krug, Maxey, Murphy, Mursau, Nedweski, O'Connor, Penterman, Petersen, Sortwell, Spiros, Steffen, Swearingen, Tittl, Tucker, Tusler, Wichgers and Zimmerman; cosponsored by Senators Bradley, Jacque, Kapenga, Nass, Quinn, Testin, Tomczyk and Wanggaard

lower

36 primary · 0 co-sponsors