Donald Trump's move to send National Guard troops and Marines to Los Angeles amid unrest over his immigration policies has given new weight to a lingering question: How far can a president go in using the military to quell domestic disturbances?

Trump plans to speak at Fort Bragg on Tuesday to celebrate the 250th anniversary of the U.S. Army as he deploys the military in an attempt to quiet immigration protests in Los Angeles.

$134 million will come from operations and maintenance accounts.

Distributing funds directly from the White House would also mark a departure from current protocols, under which FEMA oversees the dissemination of financial aid to the states following the president...

“We’re moving it back to the states, so the governors can handle. That’s why they’re governors,” Trump told reporters in the Oval Office.

States should lead their own disaster response, he said, suggesting he does not understand that states already do lead disaster response; they just can’t do it without an infusion of FEMA dollars and ...