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Jan 12, 2026 Illinois and City of Chicago sued the Department of Homeland Security over immigration enforcement tactics Tier 1 · Primary Institutions and Governance
State and local governments challenged federal enforcement operations as unconstitutional and beyond statutory authority, invoking Tenth Amendment protections.
Primary sourceA record that carries the claim alone
Supporting reportingSurfacings — do not carry alone
Supporting reports
- Complaint filed: State of Illinois v. Department of Homeland Security — The State of Illinois and City of Chicago filed suit in the U.S. District Court for the Northern District of Illinois against the Department of Homeland Security, challenging a Border Patrol deployment to Chicago beginning in September 2025 as part of "Operation Midway Blitz." The complaint alleges unlawful immigration enforcement involving warrantless arrests, chemical weapons deployment, and roving patrols, and contends the deployment violates the Tenth Amendment by interfering with state sovereign functions and the Administrative Procedure Act by exceeding statutory authority. Plaintiffs seek declaratory and injunctive relief vacating the policies and enjoining further enforcement.
- Minnesota and Illinois sued Trump administration over immigration enforcement — Minnesota and Illinois filed separate lawsuits against the Trump administration arguing that the president's immigrant crackdown operations in the Minneapolis and Chicago areas violated state sovereignty under the 10th Amendment. Illinois's lawsuit urged a judge to block U.S. Customs and Border Protection from "conducting civil immigration enforcement" in the state without "express congressional authorization."
- Illinois files federal lawsuit against Trump administration over DHS enforcement tactics — Illinois Governor JB Pritzker's administration filed a federal lawsuit on January 13, 2026, against the Trump administration challenging the Department of Homeland Security's immigration enforcement operations. The suit seeks to block U.S. Customs and Border Protection from conducting civil immigration enforcement in Illinois and to curb tactics including use of teargas, trespassing on private property, and concealing license plates during operations.
Verified: Tier 1 primary record
Week 52 – 2026-01-10–2026-01-16
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