Over the past six years, the pundits have pointed out more than once that my presidency hasn't delivered on this vision. How ironic, they say, that our politics seems more divided than ever. It's held up as proof not just of my own flaws -- of which there are many -- but also as proof that the vision itself is misguided, naive, that there are too many people in this town who actually benefit from partisanship and gridlock for us to ever do anything about it.