Question: Which family does the writer particularly discussed about their political activities in his book Dark Money?
Related documents: [0]  [DOC] The political activities of the Koch brothers include the financial and political influence of Charles G. and David H. Koch on United States politics. This influence is seen both directly and indirectly via various political and public policy organizations supported by the Koch brothers. [END] 
[1]  [DOC] Dark Money: The Hidden History of the Billionaires Behind the Rise of the Radical Right (2016) is a non-fiction book written by the American investigative journalist Jane Mayer, about a network of extremely wealthy conservative libertarians, 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. Mayer particularly discusses the Koch family and their political activities, along with Richard Mellon Scaife and John M. Olin who funded the American Legislative Exchange Council (ALEC), and the DeVos and Coors families. [END] 
Answer: 
Koch family
Koch family