And he wants the Republican Party to go where he is. It's kind of - marks the far right poll, in some ways, of American politics. Charles Koch in particular, much more so than David Koch, is an ideological true believer in some of the most hard-line libertarian philosophy that you can come across in American politics. They have a very distinct and interesting worldview. MAYER: People think that the Kochs are going to just line up straight behind the Republican Party. Jane Mayer's book is called 'Dark Money: The Hidden History Of The Billionaires Behind The Rise Of The Radical Right.' Charles and David Koch are at the center of her story, big Republican donors who are not always fans of Republicans. INSKEEP: Mayer says that in that meeting, multiple billionaires discussed how to use their money to offset the election results. And they were organized by Charles Koch, who is one of the two brothers known these days as the Koch brothers, who owns Koch Industry, which is the second-largest private company in America. JANE MAYER: Out in California at a resort, there were some of the wealthiest conservatives in America who had gotten together to deal with what they regarded as a catastrophe, which was the election of Obama. She says a group of people gathered on the weekend of Obama's inauguration in 2009. President Obama's presidency nears its end, reporter Jane Mayer is thinking of a moment at the beginning.

Dark money jane