The act is a wartime authority that allows the president to detain and deport non-U.S. citizens from enemy countries.

President Donald Trump has implemented sweeping uses of executive authority since returning to office in January. As he continues his crackdown on unauthorized immigration, the president is now reportedly looking to use a little-known law from the early days on the United States,

The president could deploy the little-known law as part of his sweeping crackdown on immigration as early as Friday, reports say. Here’s what to know. President Donald Trump said in his inauguration address that he planned to utilize the Alien Enemies Act of 1798 as part of his sweeping crackdown on immigration.