(Justin Tang/The Canadian Press via AP/File)Key Takeaways: Canadian Prime Minister Mark Carney said Aug. 6 that trade talks with the United States had turned “nasty” after President Donald Trump criticized Canada. TORONTO — Canadian Prime Minister Mark Carney said Aug. 6 that trade negotiations with the United States had turned “nasty” after President Donald Trump derided America’s neighbor and its leadership while threatening to expand tariffs. Carney said Canada remained engaged in the negotiations despite Trump’s comments, describing the talks as a fight to protect Canadian workers and businesses. They’re nasty,” Trump said. Carney said existing U.S. tariffs on aluminum have contributed to a 58% increase in aluminum prices in the United States.