I don't believe that there was anything the conservatives in PA could have done to save him. The country club Republicans never voted for him, the Reagan Democrats who supported him twice defected and "went home," plus he endured the constant daily drumbeat of negative news by the local liberal press for two years longer than Bush did (look what the liberal press has done to Bush's numbers) because he was the # 1 Scalp the Soros bunch set out to bag.
I didn’t say WHO neglected to vote for Santorum, because I’m not entirely sure. Libertarian conservatives blame the social conservatives for staying home last November, and social conservatives blame the libertarians. Everyone seems to want to blame somebody else, as we have seen here in FR for the past half year.
But what is evident is that enough people stayed home to give Casey the victory. Casey had a famous name, and the tide was with him, but Santorum might have won if not for all that ridiculous sniping at him by the various conservative factions.