The president said punishing 50 percent tariffs would begin by Aug. 19, a significant escalation of the trade war between Canada and the U.S. that he started over a year ago.
On Monday, President Trump added new 50 percent tariffs on a slate of Canadian goods, adding more pressure on one of the United States’ top trading partners and further straining a once close alliance. The move by Mr. Trump was a significant escalati... [1604 chars]