The 25 per cent tax that President Donald Trump plans to slap on imports from Canada and Mexico as soon as Saturday could drive up the price of everything from gasoline and pickup trucks, to Super Bowl party guacamole dip. The tariffs would also invite retaliation. Doug Ford, the premier of Ontario, has already vowed to counterpunch by pulling American alcohol off store shelves in the Canadian province no idle threat; Canada is the world's No. 2 market for America's distilled spirits (behind the 27-nation European Union). Trump's tariffs threaten to blow up the trade agreement he himself negotiated with America's neighbours in his first term. His US-Mexico-Canada Agreement the fairest, most balanced, and beneficial trade agreement we have ever signed into law", Trump once declared -- was supposed to bring predictability to North American trade, giving businesses the confidence to make investments. But when it comes to the self-proclaimed Tariff Man", Trump and his passion for ...