The Trump administration is suing Chicago over what are known as sanctuary laws. The administration claims the nation’s third-largest city “thwarts” federal efforts to enforce immigration laws.

President Donald Trump promised to make immigration enforcement a top priority for his new administration, and in his first few weeks in office, ICE officials have conducted multiple raids around the country, along with opening up Guantanamo Bay as a detention center to hold up to 30,000 people being deported.