District Court decision granting a preliminary injunction against parts of Texas’s SB4, which would prevent municipalities from establishing “sanctuary city” policies and impose penalties against localities that do so. The decision holds that a provision blocking local government entities and officials from “endorsing” sanctuary city policies likely violates the First Amendment, that provisions prohibiting localities from adopting certain policies, patterns or practices regarding immigration enforcement and cooperation are likely unconstitutionally vague under the 14th Amendment, that a provision forcing local jails to honor ICE detention requests likely violates the Fourth Amendment, and that a provision requiring local police departments to allow their officers to provide enforcement assistance of federal immigration law was likely preempted by federal immigration law.

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