Gov. Gavin Newsom and Attorney General Rob Bonta filed an emergency request to block expansion of what they called the Trump administration's "unlawful militarization."

The Trump administration argued in federal court that any judicial intervention to curtail its deployment of military troops to Los Angeles would endanger federal immigration agents and undermine the president's authority to keep American cities safe.

Video Quality Speed 00:00 02:16 Newsom, Trump stand off: Military personnel to remain deployed in California for now. (TNND)

The decision by the U.S. Court of Appeals for the 9th Circuit blocks a federal judge’s earlier order to return control of the troops to California.

Several U.S. House members said they received no advance notice about the federal immigration sweeps that began Friday at L.A. worksites and other locations.

The deployment of troops to Los Angeles raises questions about what Trump can and can't do with the military on U.S. soil, and whether he's crossing the line.

A federal judge ruled Thursday evening that President Donald Trump’s federalization of the California National Guard in response to anti-immigration-enforcement protests in Los Angeles was “illegal.” Pending an immediate appeal by the Trump Administration,

The divergent approaches taken by California and Texas’ governors shows how the two parties are trying to navigate national politics and the role of executive power.

AG Kwame Raoul, with 21 states, submitted an amicus brief supporting California against Trump's National Guard federalization.

Newsom’s barrage of attacks have left many demoralized Democrats hoping this is the anti-Trump leader they’ve been waiting for, but others wonder whether the governor has chosen the wrong