I just explained how the polls are manipulated to give Biden (or any Democrat) the appearance of being ahead, by using a poll sampling of 15% more Democrats than their actual ratio of voters.
My favorite Biden gaffe ever, talking about Obama's big stick:
Even when the audience is going wild laughing at his unwitting penis joke, Biden remains clueless about his error and dead serious, repeating "I assure you! I assure you!" This guy couldn't find his own ass with two hands and a flashlight.