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.

A government official says Canada is already examining possible retaliatory tariffs on certain items from the United States should President-elect Donald Trump follow through on his threat to impose sweeping tariffs on Canadian products.

If Canada seeks to retaliate over U.S. president-elect Donald Trump's tariff threat, the government should hit the U.S. where it hurt would both economically and politically, some trade experts suggest.