tavis smiley, and mike barnicle. david, listening to the vice president on the campaign trail, more than just a sneak peek into the obama reelection campaign. >> first of all, biden is out there working swing states, mentioning the republican contenders by name, and that's contenders with an "s" because it's still plural. i think they felt when they deployed biden, they would be down to the nominee, but they decided to launch him and go after all three of them. note that they're also not trying to nationalize biden yet, even though we're talking about it. having him primarily work in swing states with this message. and the message is interesting, as well. it's a middle class message. we've heard that from the president. but biden particularly will be deployed to work middle class or working class, you know, voters in the democratic -- democrats,