Stephen Miller, a top White House adviser, said the administration is looking for ways to expand its legal power to deport migrants who are in the country illegally.

Habeas Corpus is Latin for "you shall have the body" and is used to bring a prisoner or other detainee before a court to determine if their imprisonment or detention is legal. The right is enshrined in Article I, Section 9 of the U.S. Constitution, which outlines the powers of Congress, not the president.