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President Trump halted trade talks with Canada after Ontario aired a U.S. ad featuring Ronald Reagan’s 1987 warning against tariffs. Trump called the spot “fake” and accused it of trying to sway a Supreme Court case on his tariffs, though the ad uses accurate Reagan quotes, reordered. The Ronald Reagan Presidential Foundation said the ad misrepresented his views. The clash underscores Republicans’ shift on trade under Trump, whose levies have pushed the overall U.S. tariff rate faced by consumers to 18 percent, according to the Yale Budget Lab — the highest since 1934.

Prepared by Lauren Mitchell and reviewed by editorial team.