In his latest ruling, Walker stopped the state from enforcing HB 1205’s ban against non-Florida residents and non-U.S. citizens collecting petitions.

Florida cannot enforce a new law that would bar illegal immigrants from entering the Sunshine State, the Supreme Court ruled on Wednesday. “The application for stay presented to Justice Thomas and by him referred to the Court is denied,” read the order rejecting Florida’s emergency appeal to the high court.

The US Supreme Court blocked Florida on Wednesday from enforcing a law that would make it a crime for undocumented migrants to enter the southern state. A federal district judge had put the law on hold in April on the grounds that it constituted state interference with federal immigration policy.