President Trump's tariff agenda is nearing a moment of truth with an Aug. 1 deadline just a few hours away and set to establish a new baseline rate of at least 15% on most of the world. Many final moves have come in a flurry (from a deal with South Korea to a delay with Mexico),

Trump has justified tariffs on goods from Canada, the top U.S. export market, by accusing it of failing to stop the cross-border flow of fentanyl, even though U.S. government data shows Canada accounts for only 1% of the fentanyl that enters the United States.

U.S. President Donald Trump said on Wednesday that Canadian Prime Minister Mark Carney reached out ahead of an August 1 tariff deadline, but no conversations between the two took place.