"This vindicates what Mahmoud has maintained since day one — that the government cannot detain or deport him based on Rubio’s say-so," Ramzi Kassem, a lawyer for Khalil and a law professor at the City University of New York, said in a statement.

A judge said the Trump administration cannot detain or deport Mahmoud Khalil for the foreign policy reasons cited by the Trump administration.

The judge is staying his injunction until Friday to allow the Department of Homeland Security time to appeal the decision.