The Trump administration has begun denying visas to some unmarried, same-sex partners of foreign diplomats and employees of the United Nations, Foreign Policy reported on Monday. The administration is requiring couples already in the United States to show proof that they’ve married by Dec. 31, 2018 or to leave the country within 30 days. The outlet noted that this new policy means at least 10 unmarried U.N. employees currently in the country will have to get married in order for their partners’ visas to be extended. Since the 2015 Supreme Court decision legalizing same-sex marriage, U.S. policy has dictated that...