Canada's premiers are meeting in Toronto today, and cross-border trade is topping the agenda, on the heels of a tariff threat from U.S. president-elect Donald Trump.

All 13 of Canada’s premiers are meeting in Toronto today to discuss top issues for their provinces and territories, including health care, energy security and Donald Trump’s threat to impose a punishing 25 per cent tariff on all Canadian goods.

Canadian officials are reportedly planning a major investment in border security, as the incoming U.S. President threatens the country with tariffs if they can't manage to cut the number of