Canada and the United States are going to argue at a North American leaders' summit next week that resolving a dispute over measures that favour Mexican energy companies would help draw more foreign investment to Mexico, Prime Minister Justin Trudeau said on Friday. "Both (U.S) President (Joe) Biden and I are going to be... fairly clear with President (Andres Manuel) López Obrador that this... needs to be understood as a way to help Mexico develop, a way to continue to draw in investments from companies in Canada and the United States," Trudeau told Reuters.