Canada and the United States remain under pressure to reach a trade agreement before August 19, when U.S. President Trump has signed a notice to impose 50% tariffs on Canadian imports. The latest development marks a setback from earlier signs of progress, with the tariff negotiations now described as stalled because of differences over core interests. Earlier reporting said the proposed duties would cover nearly $20 billion of Canadian goods, or about 5.2% of the $383 billion in goods the U.S. imported from Canada in 2025, including products that would otherwise qualify for an exemption under the U.S.-Mexico-Canada Agreement. The impasse raises the risk that the tariffs will take effect as scheduled, testing a trading relationship that is closely integrated through cross-border supply chains and already under strain from the dispute.