An escalating clash pits a Republican president looking to fulfill his mass deportation goals against a Democratic governor with White House aspirations hoping to mobilize opposition.

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.

What the judge rules, and the likely appeals that follow, may alter decades of understanding about the roles of governors and the White House in quelling domestic unrest.

California Gov. Gavin Newsom said anti-ICE protesters in Los Angeles who engage in violence will be prosecuted to the fullest extent of the law.

The protests taking place across Los Angeles are heightening fears in America's largest county, a place still recovering from the wildfires tragedy.

California Republicans have found ways to convince Trump he’s helping the state rather than Newsom before, one expert said.

California Governor Gavin Newsom accused President Donald Trump of misusing his power by mobilizing troops in Los Angeles and warned other states to prepare for similar unrest, as protests over immigration raids stretched into a fifth night and led to a curfew in parts of the city’s downtown.

Trump and Newsom each found political support for their showdown over immigration enforcement, but experts see risks for each.