'Outrageous': Harvard vows to protect international students

President 'abusing his executive power to harm Harvard as much as he can'

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President Donald Trump ramped up his campaign against top US universities Wednesday, banning visas for all foreign students coming to attend Harvard and threatening to strip Columbia of its academic accreditation.

Trump is seeking to bring the universities to heel with claims their international students pose a national security threat, and that they ignored anti-Semitism on campus, and perpetuate liberal bias.

A proclamation issued by the White House late Wednesday declared that the entrance of international students to begin a course at Harvard would be "suspended and limited" for six months, and that existing overseas enrollees could have their visas terminated.