President Donald Trump meets with Prime Minister Mark Carney of Canada at the White House in Washington on Oct. 7, 2025. The invitation by the European Union on Wednesday, Sept. 16, 2026, for Canada to become an “associate member” is a sign of the knock-on effects of President Donald Trump’s brand of diplomacy, which often involves threatening countries that once were considered America’s closest friends. (Haiyun Jiang/The New York Times) By LUKE BROADWATER and MICHAEL CROWLEY Early in his…
