Protesters march on campus against the arrest of Mahmoud Khalil at UC Berkeley on Tuesday, March 11, 2025, in Berkeley, Calif. (Santiago Mejia/San Francisco Chronicle via AP) NEW YORK — The White House complained Tuesday that Columbia University is refusing to help federal agents find people being sought as part of the government’s effort to deport participants in pro-Palestinian demonstrations, as the administration continued to punish the school by yanking federal research dollars. Immigration enforcement agents on Saturday arrested and detained Mahmoud Khalil, a legal U.S. resident and Palestinian activist who played a prominent part in protests at Columbia last...