The U.S. Department of Justice is suing Illinois and Chicago, arguing that their immigration policies interfere with federal enforcement efforts.

The U.S. Department of Justice’s lawsuit against Illinois and Chicago, filed Thursday over their policies limiting local law enforcement’s cooperation with federal immigration enforcement, has raised ...

The move came as Trump's bid to re-shape immigration and citizenship in the United States hit a legal hurdle, with a judge in Seattle lashing out at his "unconstitutional" attempt to end birthright ...