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.

What to know as President Donald Trump imposes steep new tariffs on imports from Canada, Mexico and China, prompting retaliation and countermeasures.

Donald Trump famously renegotiated an existing trade pact with the countries in his first term. Now he's going back for more.

The Trump administration is imposing tariffs through its new International Emergency Economic Powers Act that will range from 10% to 25%.

The new tariffs on imports from all three nations ‒ which are on top of existing taxes and go into effect on Tuesday.

From an ice cream parlor in California to a medical supply business in North Carolina to a T-shirt vendor outside Detroit, U.S. businesses are bracing to take a hit from the taxes President Donald Trump has imposed on imports from Canada,

Mexico and Canada responded to the U.S. trade action with a 25% tariff against $155 billion worth of American goods as trade war kicks off next week.

President Donald Trump has pushed into new trade law territory with an emergency sanctions law to justify punishing 25% tariffs on Canadian and Mexican imports and an extra 10% duty on Chinese goods to curb fentanyl and illegal immigration into the U.