U.S. President Donald Trump announced late Thursday that the United States is ending all trade negotiations with Canada, citing a Canadian-provincial government’s advertisement that criticised American tariffs.

The ad, sponsored by Ontario’s government, used a recording of former U.S. President Ronald Reagan discussing how tariffs hurt U.S. workers. Trump declared the advert “fake” and “egregious,” asserting that trade talks were therefore “HEREBY TERMINATED.” The U.S. has imposed a blanket 35 % levy on various Canadian imports, alongside sector-specific tariffs on automobiles and steel.

Canada’s Prime Minister, Mark Carney, who has sought a trade deal to ease the burden on Ontario’s economy, has yet to respond in detail. Ontario Premier Doug Ford, a vocal opponent of U.S. tariffs, said Washington’s trade approach had inflicted deep damage on Canadian industries.

The Ronald Reagan Foundation responded to the advert by stating that the clip had been heavily edited and misrepresented Reagan’s intent, and revealed it was exploring legal options.

The termination of talks is the second such declaration by Trump toward Canada this year, following an earlier breakdown when Ottawa proposed a digital services tax that impacted U.S. technology companies.

The abrupt move signals a sharp escalation in U.S.–Canada trade tensions, and raises questions about the future of North American trade frameworks and retaliation paths.