Obama finally overtakes Clinton on that measure in ABC News' polling. More good news for the O-team:

Relatively few mainstream Democrats (as opposed to independents) say they'd cross over (13 and 10 percent, respectively). And as many Republicans say they'd defect the other way – 10 percent for Clinton if she faced McCain; 15 percent for Obama vs. McCain...

In another measure, 26 percent say the more they hear about Obama the more they like him – more than say that about Clinton (15 percent) or McCain (14 percent). Obama's the only one among them to have gained as much as he's lost in the recent public glare.

And the "wrong track" number is now 82 percent. This has the potential of an electoral earthquake.