Newsom vows to sue if Trump deploys National Guard troops to San Francisco, setting up a major constitutional clash.

In an interview with KQED, Gov. Gavin Newsom warned the Trump administration is laying the groundwork to question the results of California’s Proposition 50 vote.

Gov. Gavin Newsom on Thursday nudged Californians to be cautious about President Donald Trump’s sudden decision to pause a planned federal immigration surge in the San Francisco Bay Area, warning that the president often changes his mind.

"Clearly, business leaders made the phone call to Donald Trump," Newsom said. "He decided - for the moment - on the basis of some very powerful and wealthy people who make phone calls to him to back off because it seemed to be in everyone's financial interests that they not make a spectacle of San Francisco.

California Governor Gavin Newsom has exposed Donald Trump in his posts, warning everyone about the president using his federal power to gain control. Over the past few months, Newsom has been a relentless critic and troll of the MAGA administration and Trump,

“We’re gonna go to San Francisco,” Trump said during a Fox News interview. “The difference [from Chicago] is, I think they want us in San Francisco.” Newsom wasn’t having it. “Fact check: Nobody wants you here,” Newsom wrote on X. “You will ruin one of America’s greatest cities.