"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.

Anti-Israel ringleader Mahmoud Khalil wins court battle as a federal judge grants preliminary injunction against Trump administration, temporarily preventing his deportation.