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Wisconsin · 2025-2026 Regular Session · Bill

AB 400: Relating to: a civil cause of action for a minor injured by a gender transition procedure.

Did not advance Official data

  1. Introduced
  2. In committee
  3. Passed one chamber
  4. Passed both chambers
  5. Enacted
  6. Did not advance

Last official action: ·Record last updated:

Plain-language summary

AB 400 is a bill introduced in the Wisconsin House on August 29, 2025. According to its official title, it concerns: Relating to: a civil cause of action for a minor injured by a gender transition procedure. Primary sponsor: Amanda Nedweski (Republican), David Steffen (Republican), Scott Allen (Republican), Elijah Behnke (Republican), Lindee Brill (Republican), Barbara Dittrich (Republican), Chanz Green (Republican), Dan Knodl (Republican), Rob Kreibich (Republican), Dave Maxey (Republican), Dave Murphy (Republican), Jeff Mursau (Republican), Jerry O'Connor (Republican), Will Penterman (Republican), Jim Piwowarczyk (Republican), Chuck Wichgers (Republican). It lists 4 additional sponsors. Most recent recorded action (March 23, 2026): Failed to pass pursuant to Senate Joint Resolution 1.

Generated automatically from the official title, sponsor list, and status record only. It does not characterize the bill’s purpose or effects. How summaries are written

Sponsors

Sponsors by party (alphabetical): Republican 20

NameRolePartyChamberDistrict
Amanda NedweskiPrimary sponsorRepublicanHouse32
David SteffenPrimary sponsorRepublicanHouse4
Scott AllenPrimary sponsorRepublicanHouse82
Elijah BehnkePrimary sponsorRepublicanHouse6
Lindee BrillPrimary sponsorRepublicanHouse27
Barbara DittrichPrimary sponsorRepublicanHouse99
Chanz GreenPrimary sponsorRepublicanHouse74
Dan KnodlPrimary sponsorRepublicanHouse24
Rob KreibichPrimary sponsorRepublicanHouse28
Dave MaxeyPrimary sponsorRepublicanHouse83
Dave MurphyPrimary sponsorRepublicanHouse56
Jeff MursauPrimary sponsorRepublicanHouse36
Jerry O'ConnorPrimary sponsorRepublicanHouse60
Will PentermanPrimary sponsorRepublicanHouse38
Jim PiwowarczykPrimary sponsorRepublicanHouse98
Chuck WichgersPrimary sponsorRepublicanHouse84
Julian BradleyCo-sponsorRepublicanSenate28
Rob HuttonCo-sponsorRepublicanSenate5
Chris KapengaCo-sponsorRepublicanSenate33
Steve NassCo-sponsorRepublicanSenate11

“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.

Recent official actions

  1. Failed to pass pursuant to Senate Joint Resolution 1
  2. Laid on the table
  3. Assembly Amendment 1 offered by Representative Nedweski
  4. Placed on calendar 2-12-2026 by Committee on Rules
  5. Referred to committee on Rules
  6. Report passage recommended by Committee on Judiciary, Ayes 5, Noes 3
  7. Executive action taken
  8. Public hearing held
  9. Read first time and referred to Committee on Judiciary
  10. Introduced by Representatives Nedweski, Steffen, Allen, Behnke, Brill, Dittrich, Green, Knodl, Kreibich, Maxey, Murphy, Mursau, O'Connor, Penterman, Piwowarczyk and Wichgers; cosponsored by Senators Hutton, Kapenga, Bradley and Nass

Sources

  1. Open States / Plural (data from the official legislature website)
  2. Official legislature source