This week's Democratic Convention will be unlike any in history. But before this unconventional convention begins, we look at what it means in the context of that history. What's at stake? On today's show, as the DNC gets underway, Dan Rather, former news anchor for the CBS Evening News, president & CEO of "News & Guts" and now author of the Audible Original Dan Rather: Stories of a Lifetime, looks back on his years covering conventions, including being roughed up by security guards on the convention floor in Chicago in 1968, and offers current analysis.