The Trump administration sued Colorado and Denver on Friday, accusing the state, city and their leaders of impeding federal immigration actions, the latest salvo in the White House’s fight to compel local governments to help carry out deportations.

The lawsuit, which was filed in federal court in Colorado and includes Gov. Jared Polis and Mayor Mike Johnston of Denver as defendants, specifically challenges state and city laws that restrict or prohibit cooperation with federal agencies.

One state law prohibits officers from holding someone solely on the basis of a civil immigration detainer, a request that a detainee not be released. Other state laws prevent state and local officials from sharing information with federal immigration authorities and stop local jails from working with the federal government to house people detained for civil immigration violations.

The lawsuit also challenges a Denver measure that bans the use of city resources to assist with immigration enforcement, and a 2017 executive order from the mayor that aimed to “establish Denver as a safe and welcoming city for all.”

The lawsuit asks the court to rule the laws unconstitutional and prohibit their enforcement.

“This is a suit to put an end to those disastrous policies and restore the supremacy of federal immigration law,” the lawsuit said.

Many liberal-leaning states and cities have laws that keep local police departments mostly removed from immigration enforcement activity, as a way to build trust with immigrant communities. Democratic officials in several cities say that the policies help immigrants feel comfortable reporting crimes and interacting with health departments and schools.