Play of the Day -- Letterman: Herman Cain has a 0-0-0 chance of being president

David Letterman's top 10 list on Friday focused on the reasons that Herman Cain's campaign is in trouble. Jay Leno had some fun with the Republican presidential candidate, too. "Cain told a group of Occupy Wall Street protesters today to 'go home, get a job and get a life,'" he said. "That's the Republican version of hope and change." Don't miss today's Must See Moment where Letterman presents a mash-up of Cain's "smoking ad" with "It's a Great Pumpkin Charlie Brown":