Illinois participated in one court battle with the Trump administration Thursday when a federal judge temporarily blocked enforcement of an executive order that sought to end “birthright citizenship” under the U.S. Constitution.

The Trump administration sued officials in Illinois, Chicago and Cook County on Thursday over policies that limit cooperation with federal immigration enforcement authorities, accusing them of obstructing its immigration crackdown.

President Donald Trump’s administration went to court Thursday to challenge sanctuary policies in the state of Illinois, Cook County and the city of Chicago that limit the powers of state and local police to assist federal law enforcement on immigration-related matters.