The Department of Justice is suing Illinois and Chicago for not assisting with enforcement efforts led by Immigration and Customs Enforcement. Leaders including Gov. JB Pritzker and Chicago Mayor Brandon Johnson say they are not considering changing policies in the state that prohibit local law enforcement from aiding ICE.

The federal lawsuit is the first by Trump's Justice Department against states or municipalities that have sanctuary city policies.

Federal officials are asking a judge to bar the Illinois, Chicago, Cook County and the Cook County Sheriff from using local laws that protect migrants to hamper law enforcement.