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Trump to Attend Supreme Court Hearing in High-Stakes Tariff Case

Published: Oct. 27, 2025  5:52 p.m.  GMT+8
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The U.S. Supreme Court. Photo: IC photo
The U.S. Supreme Court. Photo: IC photo

The U.S. Supreme Court is set to hear oral arguments on Nov. 5 in a case testing whether President Donald Trump has the authority to use the International Emergency Economic Powers Act to impose sweeping global “reciprocal tariffs” and “fentanyl tariffs” on China, Canada and Mexico.

President Trump has indicated he plans to attend the arguments, a move that would make him the first sitting U.S. president to do so.

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This is an AI-generated English rendering of original reporting or commentary published by Caixin Media. In the event of any discrepancies, the Chinese version shall prevail.
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Explore the story in 30 seconds
  • The Supreme Court will hear a case on Nov. 5 regarding whether President Trump can use IEEPA to impose tariffs on China, Canada, and Mexico; Trump plans to attend.
  • Lower courts ruled Trump exceeded IEEPA authority, saying the law doesn't mention tariffs; current tariffs remain pending the Supreme Court's decision.
  • The Supreme Court has a 6-3 conservative majority; it sided with Trump’s administration in 15 of 16 cases from May–June, per a Stanford study.
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What Happened When
February 2025:
Trump imposed 'fentanyl tariffs' on China, Canada, and Mexico by invoking IEEPA during his second term.
March 2025:
Trump again imposed 'fentanyl tariffs' on the top U.S. trading partners using IEEPA.
Early April 2025:
Trump introduced global 'reciprocal tariffs' on China, Canada, and Mexico.
Late May 2025:
The U.S. Court of International Trade ruled that Trump's use of IEEPA to implement tariffs exceeded presidential authority.
Late August 2025:
The U.S. Court of Appeals for the Federal Circuit upheld the lower court's decision, stating IEEPA does not authorize the president to impose tariffs.
Mid-October 2025:
Trump publicly called the Supreme Court litigation 'one of the most important cases in the entire history of the United States' and announced his intent to attend arguments.
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