Trump, who has been roundly dismissive of Carney and previously said he "doesn't care" about Canadian politics, said the phone call was "extremely productive."

The president and Canada’s new prime minister, Mark Carney, spoke for the first time on Friday and promised to begin negotiations on trade.

President Donald Trump said he spoke with Canadian Prime Minister Mark Carney and that the two would meet after Canada’s election, amid an intensifying tariff war between the neighboring allies and major trading partners.