The U.S. will impose an additional 10% tariff on Canada, President Trump said on Saturday, a punitive measure in response to an ad campaign that he said misrepresented comments by former President Ron...

President Trump's decision to cancel trade talks with Canada goes beyond being frustrated by Ontario's anti-tariff advertisement.

Ontario Premier Doug Ford said on Friday that after discussions with Canadian Prime Minister Mark Carney, Ontario would pause the US ad campaign on Monday so that trade talks could resume.