Trump's 50% Tariffs on Canada Take Effect as Carney Vows Retaliation President Donald Trump's long anticipated tariffs on Canadian goods have taken effect at midnight ET, marking the latest escalation in the ongoing trade war between the United States and Canada.
The move, justified under section 338 of the Tariff Act of 1930, is a clear attempt to strong arm Ottawa into concessions on key issues like dairy subsidies and auto manufacturing.
At its core, this dispute is as much about politics as it is about economics.