A critical federal appeals court hearing Tuesday will decide whether the Trump administration overstepped its authority by federalizing the California National Guard.

Los Angeles residents and experts say 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.

The National Guard has at times detained protesters in its deployment to Los Angeles, an official said Wednesday, as demonstrations against Immigration and Customs enforcement raids spread to other major cities.

fail to crack down sufficiently on such protests. Beyond California, the Pentagon is weighing a request from the Department of Homeland Security to deploy more than 20,000 National Guard members ...