President Donald Trump has threatened a sharp increase in U.S. tariffs on Canadian automobiles, marking a new surge in the long‑running trade conflict between the two neighbours.


On Monday, Trump said the U.S. will lift duties on Canadian cars, trucks and auto parts from 25 % to 50 % effective 1 January, a move that would hit almost $20 bn (C$28 bn) of Canadian imports.


Canada’s counter‑measure plan


Canadian officials responded with a pledge to protect workers and businesses, announcing a public conference on Tuesday (11:00 ET) to detail the country’s response. Prime Minister Mark Carney dismissed the U.S. threat as “unreasonable” and warned that Canada would retaliate with dollar‑for‑dollar tariffs on American goods.


Political fire‑fight


Ontario premier Doug Ford fired back, telling Trump to “kiss my ass,” and suggested Canada could haul the U.S. with higher charges for oil, gas and electricity. Trump retaliated on Truth Social, calling Ford’s comments “bluster” and threatening even harsher consequences.


Business impact


Canadian makers say the tariffs could slash the U.S. market share of their products, while U.S. firms that rely on Canadian parts warn prices could rise by 50 % overnight. A Portland, Oregon, boutique noted that a key Canadian pillow could cost $90 if tariffs take effect.


Companies are scrambling for alternative sources, but the uncertainty threatens to disrupt supply chains across North America, raising concern over the integrity of the U.S.–Mexico‑Canada Agreement (USMCA).


Beyond trade: strategic responses


Carney announced a $11 bn investment to build six new icebreakers, aimed at opening shipping lanes in Canada’s northern waters—a strategic asset amid possible trade disruptions.


Experts warn that any prolonged conflict could unravel the USMCA, pulling Canada into a recession and lowering long‑term growth.


The escalating friction illustrates a growing risk: a trade war that could ripple into neighboring economies and the wider global market.