Columbia University, the scene of some of the most dramatic protests against Israel, said it was punishing students who occupied a building almost a year ago and will transform its approach to managing demonstrations.

The Department of Education announced Monday it's investigating 60 colleges and universities over allegations of antisemitic harassment and discrimination. The big picture: The warning comes after President Trump threatened last week to pull federal funding from colleges he accused of allowing "illegal protests" on campus.

The Department of Education sent letters to Yale and 59 other universities, warning them of “potential enforcement actions” for failing to address antisemitic discrimination and harassment on campus.