Mahmoud Khalil never shielded his face with a mask the way some protesters did. That made him a target when President Trump decided to move aggressively against campus activists.

Federal agents searched two student residences at Columbia University, its interim president said, a week after immigration agents detained Mahmoud Khalil, a leader of last year's campus protests, who the Trump administration wants to deport.

A Columbia University student detained over his pro-Palestinian activism is not a flight risk and should be allowed to return home for the birth of his first child, his lawyers argued in a motion for bail on Saturday.