As a defiant Joe Biden calls out the elite class and says he'll stay in the race because it's the "will of the people," we're learning new details about who the REAL puppet master is. I've long believed it was Barack Obama behind the curtain. But it may really be Joe Biden. A Parkinson's Disease expert tells NBC that Biden is a telltale case that can be diagnosed a mile away as Democrats continue the charade of a fit and competent commander in chief.