U.S. District Judge William H. Orrick said a presidential executive order violates the Constitution’s separation of powers principles and spending clause.

The Trump administration is suing the city of Rochester, New York, over its policies as a “sanctuary city,” saying they violate the Constitution by deliberately impeding immigration enforcement. The lawsuit comes after Rochester elected leaders said local police officers had violated city policy prohibiting their involvement in immigration activities when they assisted Border Patrol at a traffic stop last month and helped handcuff the vehicle’s occupants.