Scope: Federal
Branch: Executive
Severity: Amber
Date occurred: July 20, 2026
The President signed a proclamation imposing additional duties on motor vehicles from Canada, described as offsetting Canadian discrimination against U.S. commerce. The proclamation was published in the Federal Register on July 23, 2026.
Constitutional basis: Invokes Section 338 tariff-retaliation authority (19 U.S.C. §1338), apparently for the first time ever, rather than the routine, court-tested IEEPA or Section 232 tools.