President Donald Trump waves from his limousine as he leaves Trump International Golf Club, Sunday, March 16, 2025, in West Palm Beach, Fla. (AP Photo/Manuel Balce Ceneta) U.S. President Donald Trump invoked the Alien Enemies Act in a proclamation made public on Saturday as part of his pledge to deport millions of people who are in the country illegally. Below is a look at the act and how it has been used in the past. What is the act? The Alien Enemies Act was enacted in 1798 to combat spying and sabotage during tensions with France. It authorizes the president...