Before he became mayor of Charlottesville, Democrat Mike Signer got a PhD in political philosophy. He's written a biography of James Madison and, in 2009, a book called Demagogues: The Fight to Save Democracy. In an interview with reporter Sandy Hausman, he defines demagogue, explains why the Founding Fathers were so worried about them, and what they did to try and assure that these power-hungry politicians did not get into the White House.
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