Trump’s clash with Canada is his latest imperialistic embarrassment | Sidney Blumenthal The GuardianTrump’s Trade War With Canada Is Making Even Sprinkle Makers Nervous The New York TimesHow would consumers feel a U.S. ban on Canadian booze and other products? CBS NewsWhy Trump Has It Out for Canada The Atlantic'Buy Canadian': Meet the Consumers Boycotting American Products as Trade Rift Widens Time Magazine