Donald Trump is expected to invoke a rarely-used Alien Enemies Act of 1798 in an effort to ramp up deportations.

Legal contributor Kim Wehle explains the wartime law, as well as the Trump administration asking the Supreme Court to narrow nationwide injunctions blocking an order redefining birthright citizenship.

President Donald Trump is planning to invoke wartime authority in the coming days to rapidly accelerate the deportation of immigrants, according to people familiar with the matter.

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