Many of the Venezuelan immigrants who have been removed under the Alien Enemies Act have been sent to a prison in El Salvador known as the Centro de Confinamiento del Terrorismo, or CECOT. Grove said it is unclear whether that was the plan for the folks represented in this case, too.

In a brief order, the court directed the Trump administration not to remove Venezuelans held in Texas' Bluebonnet Detention Center "until further order from this court."

Constitutional scholars caution that the justices’ brief order does not address major underlying questions about the legal authorities Trump is using.