A judge has issued a temporary restraining order ruling that the Trump administration cannot bar international students at Harvard from entering the U.S.

President Donald Trump’s proclamation that banned Harvard’s foreign students from entering the US on national security grounds is a violation of the First Amendment, the university claims in an amended lawsuit.

Harvard University on Thursday filed a legal challenge to President Donald Trump’s efforts to block visas for foreign students planning to attend the Ivy League college.“Singling out our institution for its enrollment of international students and its collaboration with other educational institutions around the world is yet another illegal step taken by the Administration to retaliate against Harvard,