The lawsuit argues that the U.S. Constitution’s Supremacy Clause “prohibits Illinois, Chicago, Cook County, and their officials from obstructing the Federal Government’s ability to enforce laws that Congress has enacted or to take actions entrusted to it by the Constitution.”

The Trump administration filed a lawsuit against Chicago, Cook County and the state of Illinois for sanctuary policies that restrict

The Trump administration filed a lawsuit Thursday against Illinois, the city of Chicago, and Cook County, marking its first legal action against so-called sanctuary city laws. The complaint, filed by the Justice Department in the U.