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.

A general has testified that National Guard troops repeatedly rehearsed their role in an operation at a Los Angeles park intended as a show of force against people protesting immigration raids

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."

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

Federal agents who typically investigate drug lords, weapons traffickers or cyber criminals have fanned out across the nation’s capital

Trump on Monday federalized the Washington, D.C., police department and ordered the deployment of National Guard troops in the capital city.