On Saturday, President Trump invoked the Alien Enemies Act of 1798 to deport alleged Tren de Aragua gang members. This law has been used three times in U.S. history—during the War of 1812, World War I and World War II.

In 1798, with the U.S. preparing for what it believed would be a war with France, Congress passed a series of laws that increased the federal government’s reach. The Alien Enemies Act was created to give the president wide powers to imprison and deport noncitizens in time of war.

The top Trump administration official said deportation flights will continue -- 'Another flight every day' - even after a judge's ruling halting them.