How the Kochs Tried to Discredit Reporter Jane Mayer After She Exposed Their Operations

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In 2010, Jane Mayer published an extensive profile of the billionaire Koch brothers in The New Yorker, exploring their quiet effort to funnel more than $100 million to right-wing causes and undermine President Obama's policy agenda. Six years later, Mayer reveals her subjects responded by hiring a private firm to discredit her reporting. Mayer details the episode in her new book on the Kochs and their right-wing, ultra-rich allies, "Dark Money: The Hidden History of the Billionaires Behind the Rise of the Radical Right."