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.

When President-elect Donald Trump recently floated the idea of annexing Canada, a key reason he gave was a claim that the United States was “losing $200 billion a year” to its northern neighbor.

Canada must send a “message” to President-elect Trump on tariffs, one of its provincial leaders said Wednesday alongside Prime Minister Justin Trudeau, who described the threatened levies as