An Obvious Explanantion For No-Bounce

Gallup suggests that Obama's pick of Sen. Joe Biden did not appreciably bump up Sen. Obama's poll numbers.

One reason is that Americans don't know about Joe Biden. That's partly what the convention is for.

But Democrats ought not be anxious just yet.

This is a banal observation:  there are some Democrats who are disappointed that that he didn't choose Hillary Clinton.

If these Democrats remain disappointed in mid-September, then the extra-juicy angst will pulpy. Until then..... patience, Democrats...patience.