Politics Can a green-card holder be deported? What to know as student is arrested. On Monday, a federal judge barred the administration from deporting Columbia University student activist Mahmoud Khalil pending a hearing Wednesday in New York. Members of the Columbia University Apartheid Divest group, including Sueda Polat, second from left, and Mahmoud Khalil, center, are surrounded by members of the media outside the Columbia University campus, Tuesday, April 30, 2024, in New York. AP Photo/Mary Altaffer, File Mahmoud Khalil: Immigration agents arrest Palestinian activist who helped lead Columbia University protests The high-profile immigration arrest of Columbia University student activist...