President-elect Donald Trump's threatened tariffs could prompt Canada to pursue dollar-to-dollar retaliation or an export tax on oil and gas bound for the U.S.

Trudeau blasted Smith, reminding her that the federal government bought the Trans Mountain pipeline, which now has a C$34.5 billion price tag, giving Alberta its only route to export oil from Canada’s Pacific coast.

Outgoing Canadian Prime Minister Justin Trudeau says that “nothing is off the table” when it comes to responding to proposed tariffs by U.S.