Senior U.S. District Court Judge Charles R. Breyer said he was “trying to figure out where the lines are drawn.”

Their clash over Trump’s deployment of military forces for anti-ICE protests in Los Angeles is far from the first time the two leaders have butted heads.

It was earlier this year that California Gov. Gavin Newsom was making nice with President Donald Trump as he sought help for his wildfire-battered state and moderating his approach ahead of a potential bid for the White House.

Former Attorney General Bill Barr slams Gov. Gavin Newsom’s lawsuit over Trump’s National Guard deployment, calling the claims ‘nonsense.'

California is challenging President Trump's decision to deploy federal troops to assist immigration agents in Los Angeles.

A federal judge says he plans to rule quickly on whether President Donald Trump exceeded his authority by deploying the California National Guard in Los Angeles against the governor’s wishes.

A federal judge has issued a temporary restraining order directing President Trump to return control of the California National Guard to Gov. Gavin Newsom.

Gov. Gavin Newsom has filed a lawsuit against President Donald Trump to stop the National Guard and Marines from aiding immigration raids in Los Angeles, amid ongoing state and federal immigration policy disputes in other Democratic-led states.

Judge Breyer sets hearing on California's lawsuit challenging Trump's federalization of National Guard amid escalating anti-ICE protests in Los Angeles

California is also objecting to Trump and Defense Secretary Pete Hegseth’s decision to deploy 700 U.S. Marines to the Southern California city, though in that case, the state acknowledges that the president has sole authority over the troops.

California Gov. Gavin Newsom (D) spoke to reporters after a federal judge blocked President Donald Trump from deploying the National Guard to Los Angeles.