Experts say Khalil’s arrest is a ‘clear effort’ to silence pro-Palestinian speech in support as campus protests persist.

U.S. District Judge Jesse Furman is due to hear from lawyers for student activist Mahmoud Khalil, 29, and the federal government at 11:30 a.m. EDT (1530 GMT) in Manhattan federal court.

President Donald Trump has said the Palestinian activist's arrest near Columbia University was the first of more to come.