There’s only one thing in Mark Carney’s in-tray: Trump

Canada's incoming prime minister warns the US president's tariffs threaten the greatest crisis of our generation'

When Mark Carney becomes Canada's prime minister later this week, a list of simmering crises across the country will demand his attention: housing is unaffordable, healthcare is breaking, living costs keep rising and the climate crisis is ransacking livelihoods.

But most - if not all - of those concerns will be pushed aside, supplanted by a far greater threat to the country: the US president, Donald Trump.