President Donald Trump, joined by from left, Russia's U.N. Ambassador Vassily Nebenzia, United Kingdom Deputy Ambassador to the United Nations Jonathan Allen, U.S. Secretary of State Rex Tillerson, U.S. Ambassador to the U.N. Nikki Haley, national security adviser H.R. McMaster, and, Bolivian Deputy Ambassador to the United Nations Pedro Luis Inchauste Jordأ،n, speaks during a lunch with the United Nations Security Council in the State Dining Room of the White House in Washington, Monday, Jan. 2