Canada has been the crucible for Donald Trump’s rambunctious trade and foreign policy; America’s president had his northern neighbour in his sights before he was even inaugurated. As world leaders flock to Alberta on June 15th for the G7 summit, Canada is on the verge of cementing its place in the vanguard of Trumpian geopolitics. It may soon become the first country to emerge from the bewildering thicket of tariffs and threats with a sweeping new pact on security and trade.