On 6 February 2025, the US Department of Justice (DOJ) sued the City of Chicago, Cook County, Illinois, and the State of Illinois to prevent them from enforcing their respective "sanctuary" policies that bar their cooperation with federal immigration enforcement (AP, ABC 7 Chicago, Court Listener - US v. Illinois). Specific to Chicago, the DOJ sued to prevent enforcement of its "Welcoming City Ordinance" (Chicago Municipal Code 2-173). A preliminary or permanent injunction preventing enforcement will count, as will a declaratory judgment that the law is illegal and/or unconstitutional (Cornell - Declaratory Judgment, Cornell - Injunctive Relief). A settlement between the parties that would prevent enforcement of any part of its Welcoming City Ordinance will count, and a judgment or injunction preventing New York from enforcing part, but not necessarily all, of the law will count.

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