The U.S. Supreme Court ruled 6-3 that President Donald Trump’s use of the International Emergency Economic Powers Act (IEEPA) to impose tariffs on Canada was unlawful, as it exceeded his authority. Chief Justice John Roberts authored the decision, which upheld a lower court’s ruling. Canadian Trade Minister Dominic LeBlanc welcomed the ruling, emphasizing its potential impact on upcoming Canada-United States-Mexico Agreement (CUSMA) discussions. The ruling does not affect existing Section 232 tariffs on Canadian steel, aluminum, and lumber.
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