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.

As the Trump administration tries to aggressively increase its number of immigration arrests, “sanctuary cities” are a top target.

The lawsuit asks the court to immediately end a number of laws and ordinances it says thwart federal immigration authorities.

The Justice Department’s lawsuit against Chicago and Illinois, along with a House investigation, cap months of threats directed at jurisdictions with laws that limit local cooperation with federal imm

The Trump administration has filed suit against the State of Illinois, Cook County and the City of Chicago, arguing their sanctuary laws “interfere” with Immigration and Customs Enforcement’s ability to arrest and deport illegal migrants — the first of many such lawsuits to come,

The US justice department has filed a lawsuit against Chicago, accusing local officials of impeding federal immigration enforcement efforts amid Donald Trump's drive to ramp up deportations.

Trump administration officials are suing Illinois and top state officials, hoping to force them to turn over suspected illegal immigrants rather than releasing them from jails and state prisons. The lawsuit filed Thursday is among the most recent efforts by Trump officials to push liberal-led states,

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