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.

Military-style vehicles and National Guards troops have blocked a portion of 4th Street in front of the Ronald Reagan Federal Building and Courthouse.

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.

Trump sent National Guard troops to California amid days of protesting federal immigration raids. Here's what's usual, and unusual, about the order.

After the Trump administration sent Marines and National Guard troops to Los Angeles in response to the protests against immigration enforcement, Gov. Ron DeSantis proposed adding another group to the mix: the Florida State Guard.

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.

Every state has a national guard, Florida also has a state guard. What are they and can the president order them to respond? What to know.

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