Summary: <p>The presidential debates are a major factor in this year’s race for the White House. When did the debates become such a big deal? </p><p>Historian Kenneth Davis tells us the story of America’s presidential debates and talks about his new book, <a href="http://dontknowmuch.com/">"Don’t Know Much About The American Presidents.</a><em><a href="http://dontknowmuch.com/">"</a></em></p>
