Age is not an issue to us, but it will be to the kind of people you all naïvely think he'd be able to win over.
And also, f-ck anyone who thinks being too tied to Hillary Clinton would be a problem. She's not a toxic waste heap. She just didn't make the right appeals to the right people.
Problem is, those tied to Hillary (Kaine especially) will be stuck with a loser image in 2020. It's like Quayle in 2000. He was stuck with the same image and didn't even make it into Iowa.
the comparison doesn't make sense because Quayle was actually a huge god damn loser. Quayle was never going to win the Republican nomination ever because he's such a moron.