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.

California Governor Gavin Newsom offered some cutting words on social media for President Donald Trump Thursday as he battled to retain command of the state’s National Guard. He might have spoken too soon.

Trump will sign disapproval resolutions under the Congressional Review Act to bar California's plan to end the sale of gasoline-only vehicles by 2035

The public fight between California Gov. Gavin Newsom and President Donald Trump keeps intensifying, with name calling, insults and accusations traded over television and social media networks.

Gavin Newsom won praise on Wednesday for his speech Tuesday night seen by a national audience, something many Democrats saw as a shot across the bow to President Donald Trump that they can fight Trump -- and one that sparked new talk of Newsom as the party's standard-bearer in 2028.

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

Newsom's 2028 presidential aspirations hang in the balance as the eyes of the nation are on California's clash with immigration authorities.

Newsom said, "This isn't just about protests here in Los Angeles. When Donald Trump sought blanket authority to commandeer the National Guard, he made that order apply to every state in this nation. This is about all of us." He ominously added ...