According to Pollster.com's index of Pennsylvania primary polls, tere have been four new polls conducted at least partially since "bittergate" came to dominate the campaign.
The most important takeaway I think is that the ARG poll is very likely an outlier, suggesting that the initial damage of Obama's remarks is relatively minor. In fact, according to SurveyUSA, 43% of Pennsylvanians agreed with what Obama said, whereas 50% disagreed.
© Jed Lewison