Trump's tariffs on Canada, Mexico and China suggest he is willing to risk a global trade war. The main thing that could stop him would be a stock market selloff.

By Jarrett Renshaw, Daphne Psaledakis and David Lawder WASHINGTON (Reuters) - President Donald Trump said sweeping tariffs that he has imposed on Mexico, Canada and China may cause "short term" pain for Americans,

Business groups, economists and even some Republicans cautioned that new tariffs on goods from Canada, Mexico and China could undercut U.S. industry and the economy.