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Students and staff line up outside Hamilton Hall to enter the Columbia University campus, Tuesday, April 30, 2024, in New York. (AP Photo/Mary Altaffer)
New York City Police officers set up barricades around gathered members of the press outside the Columbia University campus, Tuesday, April 30, 2024, in New York. (AP Photo/Mary Altaffer)
Students with the Gaza Solidarity Encampment block the entrance of Hamilton Hall at Columbia University after taking it over on Tuesday, April 30, 2024 in New York. Columbia Students for Justice in Palestine called for mobilization close to midnight. Students have been occupying part of campus since April 17, calling for the university to divest from institutions that have ties to Israel. (Marco Postigo Storel via AP)
Law enforcement officers hold shields during a pro-Palestinian rally at Virginia Commonwealth University, Monday, April 29, 2024, in Richmond, Va. (Mike Kropf/Richmond Times-Dispatch via AP)
EDS NOTE: OBSCENITY - Demonstrators and law enforcement officers clash during a pro-Palestinian rally at Virginia Commonwealth University, Monday, April 29, 2024, in Richmond, Va. (Mike Kropf/Richmond Times-Dispatch via AP)
A security officer stands guard behind a locked gate at the Columbia University campus, Tuesday, April 30, 2024, in New York. (AP Photo/Mary Altaffer)
Demonstrators and law enforcement officers clash during a pro-Palestinian rally at Virginia Commonwealth University, Monday, April 29, 2024, in Richmond, Va. (Mike Kropf/Richmond Times-Dispatch via AP)
A person works on a sign board while sitting near a pile of barricades at an encampment by students protesting against the Israel-Hamas war at George Washington University on Tuesday, April 30, 2024, in Washington. (AP Photo/Mark Schiefelbein)
New Mexico State Police and UNM police prepare to make arrests of pro-Palestinian protesters occupying the Student Union building at the University of New Mexico in Albuquerque, N.M., on early Tuesday morning, April 30, 2024. (Chancey Bush/The Albuquerque Journal via AP)
Police stand in front of a University of Utah sign as they move demonstrators who had gathered to show support for Palestinians off the property at the University of Utah in Salt Lake City, Monday, April 29, 2024. (Scott G Winterton/The Deseret News via AP)
New Mexico State Police and UNM police charge, tackle and grab pro-Palestinian protesters occupying the Student Union building, making arrests at the University of New Mexico in Albuquerque, N.M., on early Tuesday morning, April 30, 2024. (Chancey Bush/The Albuquerque Journal via AP)