WORLDWho Is Mahmoud Khalil: Can Green Card be revoked? Columbia University’s Mahmoud Khalil’s arrest raises questionsadmin JATTVIBEMarch 10, 2025 by admin JATTVIBEMarch 10, 202501 Mahmoud Khalil’s lawyer Amy Greer said he was not in US on a student visa; he is a green card holder. ICE agents have recently...