Columbia University announced disciplinary action Tuesday against students who participated in a pro-Palestinian demonstration inside the Ivy League school’s main library before final exams in May and an encampment during alumni weekend last year. A student activist group said nearly 80 students were told they have been suspended for one to three years or expelled. The sanctions issued by a university judicial board also include probation and degree revocations, Columbia said in a statement. The action comes as the Manhattan university is negotiating with President Donald Trump’s administration to restore US$400-million in federal funding it has withheld from the Ivy...