Trudeau hit back at Trump's move by announcing 25 per cent tariffs on $30 billion worth of U.S. goods coming into Canada from Tuesday which would be applied to another $125 billion worth of American imports later this month.

The ongoing threat of a tariff war between Canada and the U.S. has inspired a growing movement for Canadians to buy local products and boycott U.S. products. But how much of an impact will this have?