President Donald Trump late Thursday threatened a 35% tariff on goods imported from Canada, a dramatic escalation in an on-again, off-again trade war with America’s northern neighbor and one of its most important trading partners.

The letter reiterated Trump’s complaints about dairy quotas, fentanyl and the U.S. trade deficit, which is mostly fueled by American refineries’ thirst for Canadian oil. His social media post caused the Canadian dollar to immediately tumble, indicating the market wasn’t expecting this escalation.

U.S. Democratic lawmakers argued in a new legal filing this week that President Donald Trump’s sweeping emergency tariffs usurped congressional power, and they urged a federal appellate court to strik

President Donald Trump’s shock-and-awe tariff campaign is off to a slow start when it comes to reviving American manufacturing jobs.

For many countries, the reprieve from President Donald Trump’s eye-watering tariffs, which were implemented on April 2 and temporarily reduced to 10% a week later, is soon set to come to an end. The 90-day pause,

President Donald Trump has launched a wave of Section 232 tariffs and investigations, seeking to protect U.S. national security. These nine graphics show the scale and structure of U.S. reliance on

The UK’s steel sector called on the government to finalize a deal on US tariffs as negotiations ran up against President Donald Trump’s latest deadline to slap even higher levies.

Price increases could hit coffee, shoes, appliances and other products as a result of President Donald Trump’s new tariffs in recent days, analysts told ABC News.