US-Canada trade war escalates as Trump threatens tariff hike on autos after Carney vows to retaliate BBCU.S. Tariffs Could Price Canadian Firms Out of U.S. and Threaten Thousands of Jobs The New York TimesCanada to Unveil Trump Tariff Response Including Loans, Benefits BloombergTrump's trade ‘war' with Canada has Carney facing his biggest test yet The Washington PostCollins blasts Trump's Canada tariffs as a ‘mistake' The Hill
