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

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

A wintry mix headed toward the Chicagoland area has state officials and utility companies in preparation mode Wednesday.

"The mayors of Boston, Chicago, Denver and New York City have confirmed their attendance to testify at a full committee hearing on March 5," the Oversight Committee said in a social media post.

The mayor plans to testify on Chicago's status as a sanctuary city, which prohibits local law enforcement from partnering ...

How a rising cap will re-shape the way we look at contracts and how they're negotiated; how Dustin Wolf is changing Calgary's ...

The icy surfaces come hours after sleet, freezing rain, freezing drizzle and snow fell across the Chicago area Wednesday ...

CHICAGO - Chicagoland is bracing for hazardous travel conditions as freezing rain and freezing drizzle move into the area ...

Hazardous weather has caused slippery roads and sidewalks, resulting in several crashes and some school and business closures Thursday morning.