By Rebecca Traister t’s still three months before the first Democratic debate, nearly a year before Super Tuesday, and he hasn’t even declared yet, but poll after presidential poll continues to show 76-year-old former vice-president Joe Biden leading an enormous, diverse, and talented Democratic field. It’s almost poetically appropriate. Biden carries himself with the confidence of a winner, despite not having won, or even come close to winning, either of the previous presidential primaries he’s entered. He is the guy whose self-assured conviction that his authority will protect him…
