The Ivy League university has faced intense scrutiny from the Trump administration over its handling of pro-Palestinian student protests in 2024.

A letter outlining “immediate next steps” arrived less than a week after the administration said it was canceling $400 million in grants and contracts.

Mahmoud Khalil, a permanent US resident who hasn’t been charged with breaking any laws, was arrested outside his apartment and faces deportation.

Columbia University says it has expelled or suspended some students who took over a campus building during pro-Palestinian protests last spring, and had temporarily revoked the diplomas of some students who have since graduated.

A U.S. judge on Wednesday extended his order blocking federal authorities from deporting a detained Columbia University student Mahmoud Khalil.