Trump raises Canadian steel, aluminum tariffs to 50% in retaliation for Ontario energy duties
1. Trump orders an additional 25% tariff on Canadian steel and aluminum, totaling 50%. 2. S&P 500 dropped 0.8% following the tariff announcement amid recession fears. 3. Ontario's countermeasure on electricity exports prompts Trump's tariff increase. 4. Trump warns of more tariffs on auto imports if Canada doesn't comply. 5. Market volatility continues due to ongoing trade tensions and tariff disputes.