The National Constitution Center is the perfect setting for a presidential debate. It is a fascinating place.

Obama's comments about small town people clinging to their guns and religion has apparently hit a nerve in Pennsylvania, which has more registered hunters than any state. Hillary's recent ads feature several Pennsylvanians ( a young black woman, a young white blue collar couple, a middle aged man and an older woman) expressing that the remark was insulting, elitist, and out of touch with the common people. They then comment how Hillary is more in touch with their needs.

Look for the comment to be used like a dagger tonight.

While the remarks tend to sting those, who were already against Obama anyway and may not have a decisive effect on the primary, it will certainly be played up by McCain in PA if Obama becomes the nominee.