President Donald Trump has built his presidency around stretching the bounds of presidential authority, and his response to protests over an immigration crackdown in Los Angeles is no exception.

California on Tuesday asked a federal court for a temporary restraining order blocking the Trump administration's deployment of National Guard forces and U.S. Marines to Los Angeles.

President Donald Trump has deployed 4,000 National Guardsmen and 700 Marines to LA. But California Gov. Gavin Newsom and California Attorney General Rob Bonta are suing the Trump administration, saying they unlawfully "trampled over" California’s sovereignty when they federalized the California National Guard.

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 Trump and Gov. Newsom.

U.S. District Judge Charles Breyer, a former Watergate prosecutor, will decide whether Trump had the legal authority to federalize 4,000 California National Guard troops.

President Donald Trump has authorized more than 4,000 National Guard troops and 700 Marines to respond to protests in Los Angeles. Here's what it means.

The California Governor has sued the U.S. President over the mobilization of the National Guard, calling it “an unmistakable step toward authoritarianism.”

Los Angeles residents and experts say that the National Guard's presence in Los Angeles in response to immigration protests is reminiscent of a long-standing dynamic in the state and around the country.

President Donald Trump did not invoke the Insurrection Act in a June 7 memo that deployed the California National Guard to Los Angeles. He cited a federal law that says if the U.S. faces a rebellion, the president may call into federal service the state National Guard.

Local officials and Governor Gavin Newsom don’t want the military presence and the police chief has said it creates logistical challenges for safely handling protests.

President Donald Trump has authorized the deployment of an additional 2,000 National Guard members to help respond to protests in Los Angeles over immigration raids.

Massachusetts senator tells Boston business leaders the deployment aims to "create a chill" in immigrant communities while attention shifts from healthcare cuts.