Reporter: "Will you be serving your full 4 year term or handing over power to VP?" Biden: "Are you okay? Are you alright? You're not hurt are you? Did you fall on your head or something?" His fellow Democrats laugh.

Reporter: "Will you be serving your full 4 year term or handing over power to VP?" Biden, pointing his finger at his head: "Are you okay? Are you alright? You're not hurt are you? Did you fall on your head or something?" His fellow Democrats laugh.