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Federal Showdown: U.S. Sues Illinois and Chicago Over Immigration Defiance

The Biden-to-Trump transition has reignited tensions over immigration enforcement, with the U.S. Justice Department launching a legal offensive against Illinois and Chicago, accusing them of obstructing federal immigration crackdowns.

Filed in a Chicago federal court, the lawsuit challenges local sanctuary laws—particularly Illinois’ TRUST Act—arguing that they violate the U.S. Constitution’s Supremacy Clause by preventing state and local law enforcement from aiding federal immigration efforts. The move comes just weeks after President Trump declared a national emergency on illegal immigration upon returning to office.

Illinois Governor JB Pritzker defended the state’s stance, asserting that its laws prioritize public safety while aligning with federal legal standards. The city of Chicago and Cook County, also named in the lawsuit, have long resisted federal immigration enforcement efforts, arguing that local cooperation with ICE would erode trust in law enforcement among immigrant communities.

Trump’s administration has made clear that noncompliance won’t go unchallenged. Newly appointed U.S. Attorney General Pam Bondi issued a directive instructing the Justice Department to take action against jurisdictions that hinder federal immigration enforcement. Meanwhile, a top federal prosecutor in Massachusetts has vowed to investigate local officials who obstruct stepped-up deportation efforts.

The legal battle underscores a broader national clash over immigration policy, with cities like Boston, Denver, and New York also facing scrutiny. A congressional hearing next month is expected to put sanctuary policies under the microscope, as the federal government ramps up pressure on local jurisdictions to fall in line.

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