San Francisco is suing the Trump administration over its crackdown on cities with sanctuary policies that prohibit local law enforcement from aiding U.S. Immigration and Customs Enforcement (ICE) in arresting undocumented immigrants.

Some local officials are pushing back against the federal government’s assertion that they must help ICE with its deportation campaign.

The City of San Francisco is leading a lawsuit against the Trump administration over its crackdown on sanctuary cities and states and its threat to cut off federal funding.