Ontario's premier wants the U.S. ambassador to Canada to apologize to Ontario’s representative in Washington after the ambassador reportedly shouted profanely at him about the province’s anti-tariff a

Ontario, Canada will keep airing an ad critical of tariffs through the weekend ‒ and then pause it ‒ following President Trump's objections.

Ontario Premier Doug Ford may have sparked a cross-border brouhaha when his government funded and aired an anti-tariff advertisement that infuriated U.S. President Donald Trump, but Ford is now trying to play the role of peacemaker after a high-profile,

Prime Minister Mark Carney says the federal government is in charge of trade talks with the Trump administration, as his office is declining to confirm whether he saw the Ontario government anti-tariff ad before it ran in the United States.

Trump announced the higher tariffs on Oct. 25, referencing an anti-tariff ad aired by Ontario's government featuring a video of Ronald Reagan.

An official says the Canadian government is limiting how many vehicles Stellantis and GM can import tariff free after the automakers ended some production in Canada.

An Ontario government ad that attracted the wrath of U.S. President Donald Trump was successful — even if it didn’t produce the outcome provincial officials might have anticipated, say experts in political communication.

President Donald Trump canceled trade negotiations with Canada after Ontario released an ad using Ronald Reagan's words to criticize Trump's tariff policies.