President Donald Trump has barred new international students from enrolling at Harvard University for the next six months through an executive order, which the university slammed as an unlawful, retaliatory act. Harvard accused the administration of violating its constitutional rights and pledged to protect international students. The move follows a series of punitive actions by the Trump administration, including funding cuts and political accusations. Trump also imposed travel bans on citizens from 12 countries and partial restrictions on seven more.