Feds Sue Illinois, Chicago in Immigration Squabble

The U.S. government sued Illinois and the city of Chicago on Thursday, accusing them of impeding the Trump administration's immigration enforcement policies.

Citing a national emergency declared by President Donald Trump on Inauguration Day, the U.S. Department of Justice is seeking to block the enforcement of several state and local laws that "interfere with and discriminate against" the federal government's enforcement of federal immigration law.

The complaint was filed in Chicago federal court.