05:55 AM EDT, 10/27/2025 (MT Newswires) -- U.S. President Donald Trump announced an additional 10% tariff on Canada on Saturday because the Ontario government didn't immediately pull down an anti-tariff ad it was running in U.S. markets, The Canadian Press reported over the weekend.

It noted the Ontario government launched the $75-million anti-tariff ad campaign featuring former U.S. president Ronald Reagan earlier this month and it was scheduled to run until the end of January.

(Market Chatter news is derived from conversations with market professionals globally, and/or from other media sources. This information is believed to be from reliable sources but may include rumor and speculation. Accuracy is not guaranteed.)