The Wisconsin Supreme Court ruled 4–3 on 8 July that a Republican‐led legislative committee acted unconstitutionally when it twice blocked a state agency rule prohibiting conversion therapy. The decision immediately clears the way for the ban, drafted by the professional licensing board for therapists and counselors, to take effect statewide. Writing for the liberal majority, Chief Justice Jill Karofsky said the Joint Committee for the Review of Administrative Rules violated the constitution’s separation-of-powers principles by exercising an unchecked veto over executive-branch regulations. The court found the committee’s action altered “the legal rights and duties of the executive branch and the people of Wisconsin” without going through the full legislative process. The ruling hands Democratic Governor Tony Evers a significant victory after years of legislative resistance. Once implemented, the regulation will deem efforts by licensed mental-health professionals to change a client’s sexual orientation or gender identity to be unprofessional conduct. Similar prohibitions are already in place in 23 states and Washington, D.C. Conservative justices Annette Ziegler, Rebecca Bradley and Brian Hagedorn dissented, warning that the decision shifts too much authority to the executive branch. Beyond conversion therapy, the outcome limits lawmakers’ ability to stall other agency rules on topics ranging from building codes to environmental standards, potentially reshaping how Wisconsin’s government enacts regulations.