President Donald Trump signed three proclamations Monday imposing 50% tariffs on most Canadian imports, citing long-standing trade disputes involving American automobiles, alcohol, and dairy products.
The action relies on Section 338 of the 1930 Trade Act, a statute granting executive authority to penalize foreign nations deemed to discriminate against U.S. commerce. Last year, several Democratic lawmakers sought to repeal the provision, raising concerns that its use could disrupt economic stability.
According to a senior administration official who previewed the order on a briefing call with reporters, the new duties apply broadly across sectors, including goods previously shielded under the 2020 United States-Mexico-Canada Agreement (USMCA). That trade pact recently expired, initiating a fresh round of renegotiations that could stretch until 2036.
The 50% tariffs explicitly exclude certain categories, such as energy products, potash, fish, and critical minerals.
Speaking on the condition of anonymity to the Associated Press, the official pointed to Canada’s past responses to U.S. trade policies as a primary driver for the crackdown, stating that Canada was one of the only countries alongside China to enact retaliatory duties during previous trade actions and “must be held accountable.”
The official also stated that the president asked aides to study potential additional trade measures tied to environmental impacts, specifically referencing Canadian wildfire smoke crossing into U.S. airspace and affecting domestic air quality.
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