The poll movement clearly going in Clinton's favor on both tracking polls. Nationally, Gallup today also shows the trend:

Also,
The latest general election results show Obama now trailing McCain by a statistically significant 47% to 43% margin among registered voters. Clinton and McCain are now tied in the general election at 46%.
What seems most noticeable about the polling is that Obama didn't start tanking until
after he 'denounced' Wright. Why is that?