•US Supreme Court struck down Trump's reciprocal tariffs, including "fentanyl" tariffs, under the International Emergency Economic Powers Act (IEEPA).
•Canada's Trade Minister Dominic LeBlanc welcomed the decision, calling the levies "unjustified," but noted challenges remain with steel, aluminum, and auto tariffs.
•The ruling comes as the Canada-US-Mexico trade deal (USMCA) review approaches, covering a market of over 500 million people.
•Trump's administration had imposed 25% tariffs on Canada, later raised to 35%, citing migrant and fentanyl concerns.
•Despite the Supreme Court ruling, Trump's administration plans a new 15% global tariff, though the USMCA exemption will continue.