The calculations, which do not include the effect of potential retaliation, reinforce the theory that inflation could go up with the Republican’s plan to slap Washington’s North American partners with

Canada’s premiers are urging Prime Minister Justin Trudeau to step up border security and defense spending to assuage US President-elect Donald Trump’s concerns, with the leader of the largest province calling the federal government “slow to react” and “stuck on its back foot.

The president-elect said that he would impose the across-the-board tariffs on Day 1 and that they would stay in place until Canada, Mexico and China halted the flow of drugs and migrants.