U.S. President Donald Trump on Saturday ordered a new trade investigation that could heap more tariffs on imported lumber, adding to existing duties on Canadian softwood lumber and 25 per cent tariffs on all Canadian and Mexican goods starting Tuesday. Trump claims it's an effort to curb the flow of fentanyl into the U.S., while less than one per cent of all fentanyl entering the U.S. comes from Canada. Candice Cole reports.