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.

After a district court blocked the Department of Homeland Security from abruptly ending the Cuban, Haitian, Nicaraguan, and Venezuelan Parole Program, President Donald Trump's administration appealed the decision. However, a panel of three judges denied the appeal on Monday.

A writ of habeas corpus requires authorities to produce in court an individual they are holding and justify their confinement. Article I of the Constitution says the "privilege of the writ of habeas corpus shall not be suspended, unless when in cases of rebellion or invasion the public safety may require it."