U.S. Supreme Court rules that Trump's 'emergency' tariffs on Canada are illegal

OTTAWA AND WASHINGTON, D.C. — The U.S. Supreme Court ruled on Friday that the emergency authority that U.S. President Donald Trump relied on to impose sweeping tariffs on Canada “falls short” and said the president violated federal law when he imposed the trade barriers.

The decision, which was written by U.S. Supreme Court Chief Justice John Roberts, was a 6-3 ruling.

Last year, Trump imposed tariffs on countries around the world using a law meant for national emergencies called the International Emergency Economic Powers Act or IEEPA for short. The justices upheld a lower court’s ruling that the use of the Act exceeded his authority.

Friday’s ruling does not impact the Section 232 tariffs that the president has imposed on Canadian steel, aluminum and lumber.

In a statement on Friday, Canada-U.S. Trade Minister Dominic LeBlanc welcomed the decision.

“The decision of the Supreme Court of the United States strengthens Canada’s position that the tariffs imposed by the United States under the IEEPA are unjustified,” he said, in a post on X.

“Although Canada has concluded the best trade agreement with the United States among all its trading partners, we recognize that there is still much to be done to support Canadian businesses and workers who continue to be affected by the tariffs imposed under Section 232 on the steel, aluminum, and automotive sectors,” he added.

LeBlanc referenced the upcoming scheduled review of the Canada-United-States-Mexico-Agreement (CUSMA) at the end of his statement, which is scheduled for July of this year.

It could be a game-changer that determines Canada’s position heading into the review of the CUSMA, said Avery Shenfeld, managing director and chief economist of CIBC Capital Markets, before the ruling was released.

“What it does is eliminate the threat that Trump would impose that fentanyl [IEEPA] tariff on all the rest of our exports,” he said.

If the court had ruled in favour of the president, it would have been “the adverse outcome that Canada fears the most,” giving the U.S. even more leverage in talks over CUSMA.

Currently, Canada’s exports to the U.S. are subject to a 25 per-cent tariff, but nearly 90 per cent of those goods are exempted because they are compliant under CUSMA.

More to come.

National Post

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