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Or sign-in if you have an account.Prime Minister Mark Carney speaks to journalists about U.S. President Donald Trump's new 50% tariff threat in the Parliamentary Precinct in Ottawa July 21, 2026. Photo by Blair Gable /Photo by Blair Gable / PostmediaOTTAWA – Prime Minister Mark Carney did not rule out retaliation in response to U.S. President Donald Trump’s latest tariff threat on a number of Canadian goods, part of the latest escalation of the U.S.-Canada trade conflict.Enjoy the latest local, national and international news.Exclusive articles by Conrad Black, Barbara Kay and others. 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Plus, special edition NP Platformed and First Reading newsletters and virtual events.Unlimited online access to National Post.National Post ePaper, an electronic replica of the print edition to view on any device, share and comment on.Daily puzzles including the New York Times Crossword.Support local journalism.Create an account or sign in to continue with your reading experience.Access articles from across Canada with one account.Share your thoughts and join the conversation in the comments.Enjoy additional articles per month.Get email updates from your favourite authors.Create an account or sign in to continue with your reading experience.Access articles from across Canada with one accountShare your thoughts and join the conversation in the commentsEnjoy additional articles per monthGet email updates from your favourite authorsSign In or Create an Accountor“We have a situation where the American tariffs, the 338 tariffs, will come into effect in 29 days, and we will look at all options in terms of how we would respond if they do come into effect,” Carney told reporters in Ottawa on Tuesday.“When I say we will do whatever it takes, and keep all options, obviously it’s a comprehensive point,” the prime minister added. Carney said he spoke with the president on Tuesday morning, and they agreed to “intensify negotiations in the coming weeks.” Photo by Blair Gable /Photo by Blair Gable / PostmediaOn Monday, the U.S. administration announced it intends to apply a 50 per cent tariff on certain Canadian goods in response to what it views as Canada’s unfair trade practices when it comes to dairy quotas, U.S. alcohol bans in some provinces, and tariffs quotas on American autos.U.S. President Donald Trump used Section 338 of the Tariff Act of 1930, with the levies set to take effect on Aug. 19. The new tariffs will not apply to potash, energy, fish, or other goods already facing separate sector-specific tariffs.Carney said he spoke with the president on Tuesday morning, and they agreed to “intensify negotiations in the coming weeks.”The prime minister said Canada-U.S. Trade Minister Dominic LeBlanc will convene the Canada-U.S. Advisory Council Tuesday afternoon.Carney also said he will host a call with the premiers Tuesday to discuss Trump’s latest trade action and will be meeting with them in-person on Wednesday for the first ministers meeting in Charlottetown. The prime minister said Canada-U.S. Trade Minister Dominic LeBlanc will convene the Canada-U.S. Advisory Council Tuesday afternoon. Photo by Blair Gable /Photo by Blair Gable / Postmedia“I would say as well that throughout this time, we have made a series of comprehensive and detailed proposals about how to modernize CUSMA, recognizing the transition that the U.S. is underway … with all its trading relationships, including with Canada and Mexico,” said Carney.When asked whether his government plans to make more concessions to move the CUSMA discussions forward, the prime minister said Canada’s sticking point in its negotiations with the Americans remains the Section 232 tariffs that apply to Canadian aluminum, forest products, steel, automobiles and pharmaceuticals.“Those first four being the most important for the Canadian economy, and that we don’t want a partial agreement,” said Carney. “We want something that addresses those sectors as well, so that it’s a viable approach going forward.”More to come…Our website is the place for the latest breaking news, exclusive scoops, longreads and provocative commentary. 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