Barack Obama's comments in which he called Pennsylvania middle class voters "bitter" and claimed they "cling to guns and religion" have hurt him in the latest polls.

Last week at this time, the American Research Group poll showed Barack Obama tied with Hillary Clinton in Pennsylvania each with 45% of the votes.

This Monday's poll shows that Clinton is leading Obama by 20 points. Obama registered only 37% of those polled compared to the 57% who said they'll be voting for Clinton.

Polls still show Obama leading in North Carolina, but a surge after Pennsylvania could help Clinton fare much better than expected down south.

It is interesting to see that Obama is winning in traditionally red states and Clinton is dominating blue states and swing states.