How U.S.-Canada Tariff Negotiations Turned Into an All-Out Trade War

Detailed accounts of the final hours of the negotiations show that, while the United States offered Canada what it said was the best deal of any country, what Canada had to give up in exchange was seen as unthinkable.Prime Minister Mark Carney of Canada speaking about the trade dispute with the United States on Monday at the Davie Shipyard in Levis, Quebec.