The National Guard is a reserve force of the U.S. military that is typically deployed by states in response to natural disasters, although it has been used in the past by presidents to help quell domestic unrest - including President George H.W. Bush during the Los Angeles riots in 1992.

Live updates and the latest news as a D.C. law enforcement checkpoint draws protestors and Trump and Putin prepare for their summit in Alaska.

The U.S. government’s unprecedented use of National Guard troops in Los Angeles to protect officers carrying out President Donald Trump’s immigration crackdown was illegal and should be ended, a lawyer for the state of California told a federal judge on Tuesday.

Lawyers for President Trump and Gov. Gavin Newsom faced off over the National Guard deployment in Los Angeles — and debated whether they were subject to a "constitutional exception."

Maj. Gen. Scott Sherman testified Tuesday at a trial to determine whether the Trump administration violated federal law when it deployed the soldiers and U.S. Marines to Southern California this summer.

Senator Adam Schiff criticizes President Trump's deployment of National Guard troops and federalization of Washington police.

West Virginia National Guard troops are now being sent to Washington, DC, in an escalation of President Donald Trump’s efforts to federally take over law enforcement in the city.