The Dow, S&P 500 and Nasdaq retreat from record highs as President Trump rolled out a fresh tariff against Canada, following Brazil hit. Meanwhile, the Federal Reserve and Chairman Powell are under fire for spending on renovations.

Major stock indexes were slightly lower on Friday as U.S. President Donald Trump's announcement of tariffs on imports from Canada fanned worries about trade tensions, with the Canadian dollar down against the greenback.

President says Canada’s tariff retaliation, lack of progress on curbing fentanyl smuggling is behind new import penalty