Prime Minister Justin Trudeau, right to left, Foreign Affairs Minister Chrystia Freeland, United States Trade Representative Robert Lighthizer, President of the United States Donald Trump, Mexico’s Secretary of Economy Ildefonso Guajardo Villarreal, and President of Mexico Enrique Pena Nieto participate in a signing ceremony for the new United States-Mexico-Canada Agreement in Buenos Aires, Argentina on Friday, Nov. 30, 2018. THE CANADIAN PRESS/Sean Kilpatrick
