How did Trump send in National Guard Troops and Marines to L.A.? An explainer of presidential authority and the limits of military law enforcement.

Gov. Gavin Newsom posted on social media that "Commandeering a state's National Guard without consulting the Governor of that state is illegal and immoral."

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.

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.

A federal judge will hold a hearing on Thursday over California’s request to block the Trump Administration from using troops in Los Angeles to quell unrest sparked by Immigration and Customs Enforcement (ICE) raids as part of the President’s mass deportation effort.

California Gov. Gavin Newsom (D) has argued that the deployment is “an illegal act, an immoral act, an unconstitutional act.”

A federal court hearing is scheduled for Thursday challenging Trump's use of the National Guard and Marines to support immigration raids in Los Angeles. California leaders warn that the military intervention is the onset of a much broader effort by Trump to overturn norms at the heart of America's political system.

Tens of thousands of Americans protested President Donald Trump at rallies and marches in major cities from New York to Los Angeles on Saturday, a day marred by the assassination of a Democratic lawmaker in Minnesota and conflict in the Middle East.

Protests surrounding immigration enforcement actions in the Los Angeles area and the Trump administration’s response to them have cued up a public spat between President Donald Trump and Gov. Gavin Ne