Why is America living in an age of profound and widening economic inequality? Why have even modest attempts to address climate change been defeated again and again? Why do hedge-fund billionaires pay a far lower tax rate than middle-class workers? In a riveting and indelible feat of reporting, Jane Mayer illuminates the history of an elite cadre of plutocratsheaded by the Kochs, the Scaifes, the Olins, and the Bradleyswho have bankrolled a systematic...