On Wall Street, stock prices tumbled Monday amid fears of a growing trade war brought on by President Trump’s imposition of tariffs on aluminum, steel and Chinese products. The Dow Jones index fell by more than 450 points, bringing its losses from a high in January to more than 10 percent, in what economists call a “correction.” Meanwhile, shares of Amazon fell by more than 5 percent after Trump attacked Amazon on Twitter, writing, “Only fools, or worse, are saying that our money losing Post Office makes money with Amazon. THEY LOSE A FORTUNE, and this will be changed.” Trump has targeted Amazon because its owner, centi-billionaire Jeff Bezos, also owns The Washington Post, which Trump has repeatedly accused of publishing “fake news” about his presidency.