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 Gov. Gavin Newsom had sued Trump in an attempt to block the deployment of federal troops in the city, which Newsom has called a “serious breach of state sovereignty.”

With California and the White House now in a legal standoff over Trump's deployment of federal troops in Los Angeles, Gov. Newsom is no longer holding back in his fierce criticism of the Trump administration.