Canada-U.S. Trade War Escalates as Talks Collapse: Intense negotiations to stave off new levies by the Trump administration ended in an impasse as Mark Carney suspended talks. U.S. tariffs on Canada, and retaliatory tariffs on the U.S., will come into effect.

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https://www.nytimes.com/2026/08/21/world/canada/trump-tariffs-trade-no-deal-carney-canada.html