Dark Money: The Hidden History of the Billionaires Behind the Rise of the Radical Right is a 2016 non-fiction book written by American investigative journalistJane Mayer. The book focuses on a network of extremely wealthy conservative Republicans, foremost among them Charles and David Koch, who have together funded an array of organizations that work in tandem to influence academic institutions, think tanks, the courts, statehouses, Congress, and the American presidency for their own benefit.[1][2][3][4][5][6][7]