Scope: Federal
Branch: Executive
Severity: Amber
Date occurred: September 8, 2026
The President signed a proclamation excluding specified Canadian products from importation into the United States, citing continued discrimination against U.S. commerce with respect to motor vehicles. The proclamation was signed September 8, 2026 and published in the Federal Register on September 14, 2026.
Constitutional basis: Delegated trade authority used to bar entry of goods outright rather than adjust duties, an aggressive application beyond the ordinary tariff-proclamation pattern.