Biden's campaign team launched the $30 million advertising campaign on Saturday in the electorally crucial swing states. In an outtake, a producer asks Biden off camera for another take, whereupon the 81-year-old jokes: "Look, I'm very young, energetic and good-looking.

What the hell am I doing this for?" According to a representative survey by the Ipsos Institute for the TV channel ABC News in mid-February, 86 percent of participants said Biden was too old for the job of president.