There was really nothing here that we hadn’t heard before, though Obama came up with a wittier way of making his basic point about Iraq. On some level, it’s not so surprising that we didn’t hear anything incredibly new. On another level, it’s extremely surprising to me, tactically, that McCain didn’t try to do something new. Instead, McCain took the same talking points (earmarks bad, tax cuts good, earmarks very bad) that have seen him fall behind and decided to repeat them with less energy. I would be shocked if this exchange gained any ground for McCain and not at all surprised if he just continues to slip.