WASHINGTON, DC - MARCH 10: U.S. President Barack Obama (R) and Canadian Prime Minister Justin Trudeau (2nd R), U.S. first lady Michelle Obama (2nd L) and Sophie Grégoire-Trudeau wave to invited guests from the Truman Balcony of the White House after an arrival ceremony at the White House, March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Mark Wilson/Getty Images)
