The threats of defunding are especially alarming for cities like San Francisco, where services such as Bay Area Rapid Transit are starting at a fiscal cliff. San Francisco and Santa Clara could potentially lose billions of dollars in funding for necessary services, said Chiu and Tony LoPresti, who represents Santa Clara County.

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.San Francisco City Attorney David Chiu said the lawsuit -- to be filed Friday in U.

San Francisco and other cities and counties nationwide announced a plan to fight back Friday against the Trump administration’s attempt to require them to cooperate with federal immigration agents in mass deportations,

Officials in San Francisco and the county of Santa Clara announced they intend to challenge President Donald Trump’s executive order cutting off federal funding for sanctuary cities and directing use of local officials for immigration enforcement.

Portland will now join a coalition of local governments suing the Trump administration for executive orders and actions that harm sanctuary cities and states.

The city of Portland is joining a lawsuit with other sanctuary cities challenging the Trump administration’s threat to withhold federal funding from sanctuary cities. The lawsuit will be filed today in United States District Court of Northern California,