Presidents are given the extraordinary power by the 227-year-old law to order the arrest, detention and deportation of noncitizens who are 14 years or older and come from countries staging an "invasion or predatory incursion" of the U.

Hundreds of mostly Venezuelan alleged gang members were deported from the United States to a prison in El Salvador on Sunday, with the Trump administration invoking wartime powers to speed up removals despite a court ruling halting the move.