The U.S. national anthem was booed at multiple sporting events across Canada in reaction to President Donald Trump's tarriffs. Trump's tariffs could devastate my small business. T

A burst of optimism among companies after Donald Trump won the U.S. presidential election has faded as business leaders grapple with potentially negative policies of the new White House.

American companies of all sizes are on edge over President Donald Trump’s tariffs, but it’s arguably small business that is most exposed. Many smaller firms say they’re having to hike prices, freeze expansion plans or absorb a hit to already-thin profit margins as import bills climb.