Americans for Prosperity Group activists attend a rally in Manhattan on September 20, 2012 in New York City. Dozens of Americans for Prosperity activists gathered to protest Occupy Wall Street and call attention to President Obama's economic agenda. (Photo by Mario Tama/Getty Images) Mario Tama/Getty Images

New Yorker magazine reporter Jane Mayer discusses the political influence of billionaires like the Koch brothers. She titled her best-selling book "Dark Money" and says secret money is an invitation to corruption. Donald Trump and Bernie Sanders both said American elections are "rigged" by big money.

Jane Mayer spoke with former Vice President Walter Mondale and Univ. of Minn. professor Larry Jacobs about the future of democracy. The event was held at the Humphrey School on November 22, 2016.

Additional listening: Interview with Charles Koch

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