Canada is one of the United States' top trading partners, with more than $410 billion of goods crossing into the country last year.

The country’s new prime minister, Mark Carney, has been called the “Trump whisperer,” and negotiations have been cordial and professional. But it’s been a wild ride.

U.S. President Donald Trump’s latest tariff threat against Canada was rattling markets SPX Friday, as investors faced the specter of yet more levies on goods imported from the United States’ northern neighbor.

President Donald Trump has finally found a way to like arming Ukraine: ask European allies to donate their weapons, and sell them American replacements.

Tariff negotiations between the two top trading partners are on a different track from those the U.S. is pursuing with other nations. But Canada may not get a better outcome.

Mining giant Rio Tinto Group said US tariffs on its Canada-made aluminum generated gross costs of more than $300 million in the first half, in another sign of how President Donald Trump’s trade agenda is shaking up metals supply chains.

President Trump has taken an unconventional approach to trade negotiations by sending form letters to foreign leaders.

President Trump is pushing through with his tariff agenda, unveiling a new batch of letters to country leaders outlining tariffs on goods imported from their countries beginning in August. Trump on Thursday announced a 35% tariff on Canadian goods.