The U.S. Department of Justice on Friday filed a lawsuit against Colorado and Denver’s top elected officials seeking to overturn state and local laws that limit federal immigration enforcement in

The Justice Department is struggling to represent President Donald Trump’s positions in court. The department last week suffered losses that dealt a setback to the Republican administration’s agenda.

The lawsuit asks the U.S. District Court in Colorado to declare that several city and state policies are invalid, blocking the city and state from enforcing them. The laws and policies in question generally restrict the ability of state and local government employees to help with immigration enforcement.