Sean Kilpatrick/The Canadian Press via AP Canadian Prime Minister Justin Trudeau, right, greets President Donald Trump during the official welcoming ceremony at the G7 Leaders Summit in La Malbaie, Quebec. This article originally appeared at The Huffington Post . Subscribe here . President Donald Trump ’s savaging of Canadian Prime Minister Justin Trudeau has gotten a good deal of attention for its sheer weirdness—why scapegoat one of America’s most loyal allies and benign trading partners? But it’s worth looking below the surface at the actual trade relationship and the differences between the two countries. For now, Trump may have done Trudeau a favor. After the U.S. president’s trade tantrum and imposition of tariffs on steel and aluminum, polls showed that 72 percent of Canadians supported Trudeau’s handling of the dust-up. But polls also showed Trudeau’s Liberal party slightly behind the rival Conservatives, with both losing ground to the more left-wing New Democrats. Trade...