Trump Tariff Tracker -- September 18

The Supreme Court has announced that it will hold oral argument on the morning of November 5, 2025, in the combined challenges to the legality of tariffs imposed under the International Emergency Economic Powers Act. If the Court upholds the lower court decisions and strikes down the IEEPA-based tariffs, the baseline and country-specific reciprocal tariffs as well as fentanyl-related tariffs would be eliminated. The Court's ruling would not likely impact those tariffs that have been based on Section 232 investigations at the Commerce Department or Section 301 investigations at the USTR.

The USTR has published its request for comments and notice of public hearing regarding the 2026 review of the USMCA by Canada, Mexico, and the U.S. The USTR is seeking public comments on the operation of the USMCA in advance of the joint review of the USMCA by the parties on July 1, 2026. The deadline for submission of written comments is November 3, 2025. USTR will also be holding