Obama Lists Qualities He Wants in A Veep

The Land of Lincolner tells CBS' "Early Show" he's looking for a VP who could step in to be president, help him govern and challenge him-- someone who is not "a yes person." Watch video above. Also discusses McCain's recent attacks, remarks on "houses" comment, says convention speech isn't complete. Plus: NBC's Andrea Mitchell reports one of Biden's sons was flown in a private plane from Maine to the Senator's home in Delaware Wednesday. Biden is "gathering the clan," she said.