New McCain-Palin ad

I'm not quite sure what this ad is supposed to accomplish, except perhaps to establish in the viewers' mind the idea that negative information about Palin they hear in the media is the result of Democratic attacks.

UPDATE: Ed Morrissey doesn't like it:

The McCain campaign has called Barack Obama "the world's biggest celebrity" for two months now, and not for bad reasons, either. However, after doing that, I don't think they have much room to complain about a lack of respect from their opponent.

Yeah, lay off the Sara-is-a-victim angle.