Obama supporters don't like Clinton ads, and this is supposed to be evidence of polarization? C'mon.
How black is Obama? You know, this is what Coulter started in with two or three weeks ago, if you recall (and everyone was very successful in ignoring her...yippee!).
Without deep thought, I don't like it on face. It suggests that America still has these problems with race AND that Obama cannot help us with them, because he is not black enough.
My approach / critique is not to question whether he is "black enough", but to ask how he goes about addressing the problems without getting snared in something that is going to take more goodwill than he alone might be able to generate, quite possibly.
It may not play quite that way, but that's the take, in realtime.