US-Canada trade war escalates as Trump threatens tariff hike on autos after Carney vows to retaliate BBCTrump Threatens Even Higher Tariffs on Canadian Exports After Talks Unravel The New York TimesCanada will announce retaliatory tariffs against U.S. on Tuesday, official tells AP PBSInside the 72 hours that cratered the US-Canada trade deal PoliticoTrump hits back at Carney, threatens to hike auto, truck, metals tariffs to 50% NBC News
