Trump’s 50% tariff on Canada is a warning to the rest of the world

On Monday, President Donald Trump announced a 50% tariff on Canadian imports, marking one of the steepest duties to take effect since the Supreme Court struck down his most sweeping tariffs earlier this year. The administration framed the move as a response to what it says is Canada’s longstanding trade barriers. But the decision sends a message to every other US trading partner: You could be next. Ever since the Supreme Court blocked Trump’s broad tariff authority, many governments and businesses believed the risk of being hit with new tariffs had eased. But now, Trump is signaling that he may…