Trump enacts sweeping tariffs on Mexico and Canada, opening door to painful trade war

President Donald Trump’s blanket tariffs on Mexico and Canada took effect on Tuesday, an extraordinary action aimed at bringing America’s top trading partners to heel. But it threatens to weaken the North American economy, including that of the United States, at a time of significant stress.

​ President Donald Trump’s blanket tariffs on Mexico and Canada took effect on Tuesday, an extraordinary action aimed at bringing America’s top trading partners to heel. But it threatens to weaken the North American economy, including that of the United States, at a time of significant stress. Read More Breaking News, Latest News and Videos | CNN