Canadian Prime Minister Mark Carney and President Trump had a telephone conversation last Thursday to discuss trade. By all accounts, the discussion was productive after top trade officials have been meeting for months with little to show. In late July, Trump signed an executive order increasing tariffs on Canadian goods from 25 percent to 35 percent on all products not covered by the U.S.-Mexico-Canada trade agreement. At a recent press conference, Carney matched the U.S. deal. As he said: In this context and consistent with Canada's commitment to USMCA, I am announcing today that the Canadian government will now match the United States by removing all of Canada's tariffs on U.S. goods specifically covered under USMCA. Canadian tariffs on...