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President Donald Trump is pushing forward with his immigration crackdown, as he may soon implement deportations through the use of the 1798 Alien Enemies Act to deport immigrants with alleged crimes without court hearings.

U.S. President Donald Trump said he planned to invoke the Alien Enemies Act 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.