This summer, Sen. Rick Santorum cut a double digit deficit to about 5 % against his opponent Bob Casey with an aggressive, multi-million dollar ad blitz that critized Pennsylvania's Treasurer, but tempered it with portrayal's of Sen. Santorum as a family man. A couple of week's ago (as was well documented here), Sen. Santorum attacked Casey with a commercial implying that his campaign staff was full of crooks....In the meantime two polls (Rasmussen and Quinnipiac) have shown Casey regaining his double digit lead. ... That would indicate that the electorate may be tired of uber-negative ads (aren't conditions negative enough without the ubiquitous ad man voice reminding us?)....Those polls, however, were taken before Casey struck back with an ad blasting Sen. Santorum (also before the Green Party candidate got a do not pass go card from the state superior court). It will be interesting to see if Casey's numbers fall after launching his counter-attack against Sen. Santorum.