An activist who led Pro-Palestinian protests at Columbia University will remain detained in Louisiana following a brief Wednesday court hearing. Judge Jesse Furman said he would grant a request by Mahmoud Khalil's lawyers allowing them to have privileged phone calls with Khalil at least twice — today and tomorrow.

Mahmoud Khalil called himself a "political prisoner" in a new letter dictated from the Louisiana detention center where he remains held following his arrest.

New video shows the arrest of Columbia University pro-Palestinian activist Mahmoud Khalil by Immigrations and Custom Enforcement agents.