The One Thing That Terrifies Donald Trump

Donald Trump likes to project an aura of absolute power. The U.S. president has said he faces no real restraint other than his own “morality”—neither international law nor the views of other nations—as he freely deploys the U.S. military and threatens to reorder trade and nations around the world. But we have enough data points by now—after more than a year of bellicose ultimatums and outright war—to know that Trump is quite frightened of one force beyond his control: the markets. Trump’s abrupt retreat on Tuesday from his bloodthirsty (and increasingly desperate) threats to destroy Iranian “civilization” following Tehran’s oil-spiking…