NYT > World News U.S.-Canada Trade War: What to Know About Tariffs and the Negotiations Par : The New York Times 25 août 2026 à 14:49 Canada suspended trade negotiations, triggering President Trump’s 50 percent tariffs on a range of Canadian goods. Mark Carney retaliated “dollar for dollar.” © Andrej Ivanov/Agence France-Presse — Getty ImagesCanadian Prime Minister Mark Carney addresses the trade dispute with the United States in Levis, Quebec, on Aug. 24.