Watch LIVE coverage from BNN Bloomberg, Canada’s definitive source for business news. U.S. President Donald Trump says he’ll announce Monday the United States will impose 25 per cent tariffs on all steel and aluminum imports, including from Canada and Mexico. 12:00 p.m. EST: TSX up more than 200 points as markets shrug off Trump’s tariff threat Canada’s main stock index was up more than 200 points in late-morning trading, helped by strength in the energy, base metal and technology sectors, while U.S. stock markets also climbed. The S&P/TSX composite index was up 217.05 points at 25,659.96. In New York, the...