#川普宣布新關稅政策 After the U.S. Supreme Court ruled on February 20, 2026, that Trump's previous global tariff policies were illegal, Trump immediately announced a new tariff alternative via social media on February 21, 2026 (Eastern Time):
BBC
BBC
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Global 15% Temporary Import Tariff: Trump initially announced a 10% global tariff on Friday, but in less than 24 hours, he decided to increase this rate to 15% on Saturday.
Effective Date: The policy is scheduled to take effect at 12:01 AM on Tuesday, February 24, 2026 (Eastern Time).
Legal Basis: This action is based on Section 122 of the Trade Act