Ezra Klein frets:

The first two days of the convention were wasted, or seemed so from my vantage point. Tonight, Joe Biden will rip into McCain. And tomorrow, Obama will do whatever he does. Then on Friday, at noon, John McCain will announce his vice presidential nominee, strangling any convention bounce in the crib. Then the Republican Convention will begin, and you can be assured that they will remember Barack Obama's name. They will remember how to make fun of him, how to mock his celebrity and inexperience. And the media will not cover Ron Paul's protesters with the vigor or attention they gave to Hillary Clinton's diehards. Instead, they will cover four days of straight attacks on Barack Obama, culminating with a grave address about sacrifice and service from John McCain. And unless Obama's convention makes a sharp turn tonight and tomorrow, they will have done nothing to soften the impact of these attacks and themes or create a counternarrative for the media to cover.

I'm afraid I concur. With the sole exception of Michelle Obama's superb speech, this convention has been McCain's dream. Yes, there's Biden and the chance that someone - who knows? - might actually attack the worst national security record of any administration in modern times. And then there's Obama on Thursday. But the way they have set up the speech all but ensures that Obama cannot defeat expectations. Maybe Obama can overcome the obstacles this setting will create. He will have to be one hell of a politician to pull this one off.

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