Trump imposes 50% tariff on Canadian imports
Trump imposes 50% tariff on Canadian imports
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Trump slaps 50% tariffs on Canada and Carney vows to 'intensify' trade talks
The duties mark a major escalation in trade tensions between the North American neighbours.

These tariffs have been introduced under Section 338 of the 1930 Tariff Act, which covers trade discrimination rather than national emergencies (the mechanism used for the previous tariffs which the Supreme Court struck down recently).