The lawsuit asks the court to immediately end a number of laws and ordinances it says thwart federal immigration authorities.

Federal officials are asking a judge to bar the Illinois, Chicago, Cook County and the Cook County Sheriff from using local ...

The lawsuit accuses city, county, and state authorities of ‘minimally enforcing—and oftentimes affirmatively thwarting’ ...

The lawsuit comes as Chicago mayor Brandon Johnson is expected to testify before the House Oversight Committee next month.

The federal lawsuit, filed Thursday in U.S. District Court in Chicago, claims sanctuary policies in Illinois that keep local ...