San Francisco and a handful of other US cities are suing the Trump administration over its move to block funding for local governments with “sanctuary” policies as the president cracks down on undocumented immigrants.

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.

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