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Tariffs

Trump Expands Illegal Section 338 Tariffs Against Canadian Imports - and Bans Some Entirely

The move further escalates this harmful and illegal trade war with a vital ally.

Ilya Somin | 9.9.2026 2:05 PM

Illustration: Midjourney

Yesterday, Donald Trump further expanded his illegal Section 338 tariffs against Canadian imports and banned importation of some Canadian products entirely. The pretext for the move is Canada's predictable imposition of counter-tariffs in response to Trump's initial Section 338 moves. Georgetown University trade policy expert Peter Harrell has a helpful summary of the new restrictions Twitter/X:

1. Trump signed a variety of proclamations this evening retaliating against Canada's retaliation against Trump's initial Section 338 tariffs, now that the Canadian retaliatory tariffs have come into force. Trump's action includes outright bans on a handful for products as well as modifications of the 50% tariff list to reduce the impact on certain U.S. industries while adding new products to the tariff list to avoid an overall........

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