Joe Biden seemed to have a meltdown on Wednesday when asked by a reporter about an ongoing feud with Sen. Bernie Sanders. CBS reporter Ed O’Keefe questioned Biden on why he was still ’attacking’ Sanders after accepting his apology. ’Why, why, why, why, why, why?’, said Biden excitedly, motioning with his hands. ’You’re getting nervous, man. Calm down, it’s OK!’, Biden added.