Earlier today, in Illinois v. FEMA a federal district court ruled the Trump administration cannot deny federal disaster relief aid to "sanctuary" states that limit assistance to federal efforts to deport undocumented immigrants. The suit was brought by twenty state governments, led by the state of Illinois, and by the District of Columbia. This is the latest in a long line of decisions striking down Trump Administration efforts to impose immigration-related conditions on federal grants to state governments, even though those conditions were never authorized by Congress.
Federal District Judge William E. Smith (a Republican George W. Bush appointee) ruled the Trump conditions violated the Spending Clause of the Constitution in three ways: the conditions are ambiguous, they aren't related to the purposes of the grants in question, and they are onerous enough to be coercive:
