Illinois Democratic Gov. JB Pritzker says the state follows the law. President Donald Trump has often singled out Chicago and Illinois, which have some of the strongest sanctuary laws in the U.S.

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

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