Nowhere has Donald Trump’s return as US president shaken up domestic politics quite as much as in Canada. It is remarkable enough that Mark Carney, a former central banker with no experience in politics or parliamentary seat, has been catapulted into the prime minister’s job with at least a fighting chance of winning an election that had seemed lost to his Liberal party. More remarkable still is that a Canadian leader should be faced with such a moment of peril for the country’s economy and sovereignty, after Trump’s tariff threats and talk of turning Canada into America’s 51st state. “The Americans want our resources, our water, our land, our country,” he said in his acceptance speech. “Canada never, ever, will be part of America in any way, shape or form.”