Administration officials cited a rarely used provision that allows people’s removal if they present “potentially serious adverse foreign policy consequences for the United States.”

Columbia University has not helped the Department of Homeland Security identify individuals the government claims engaged in "pro-Hamas activity," White House Press Secretary Karoline Leavitt said in a Tuesday press briefing.

About a dozen protesters were cuffed as they clashed with NYPD officers during a demonstration in support of former Columbia University student Mahmoud Khalil Tuesday afternoon, law enforcement sources said.