Tucker Carlson tells the truth about the new American elites, a group whose power and wealth has grown beyond imagination even as the rest of the country has withered. The people who run America now barely interact with it. They fly on their own planes, ski on their own mountains, watch sporting events far from the stands in sky boxes. "They view America the way a private equity firm sizes up an aging conglomerate," Carlson writes, "as something outdated...