Canada races to avert $20bn US tariff deadline

Canada faces an imminent deadline to prevent American tariffs on $20 billion worth of its exports, with Prime Minister Mark Carney calling Trump directly on Tuesday in a last-ditch effort to reach a deal. The talks come amid broader US trade pressure that has rattled Canadian exporters and complicated domestic politics, including Quebec separatists who say Trump's unpredictability makes an independence referendum untenable right now.