Trump administration officials said they anticipate the fight over the use of the wartime act will ultimately head to the Supreme Court.

U.S. District judge James Boasberg halted Trump's use of the centuries-old wartime power and ordered five men to be returned to the U.S.

President Trump says he’s using the 227-year-old law to crack down on Venezuela’s Tren de Aragua gang. The move is already facing a legal challenge. Here’s a look at key questions and answers about the Alien Enemies Act.