Donald Trump’s threats have given many democracies a reason to tackle long-standing problems that once seemed too hard. Canada’s prime minister, Mark Carney, is showing them how https://www.economist.com/leaders/2026/10/15/mark-carney-shows-middle-powers-how-to-handle-a-dangerous-world?taid=6ae1f68d1d3fbb0001b05375&utm_campaign=editorial-social&utm_content=discovery.content&utm_medium=social-media.content.np&utm_source=twitter