Also, elderly Catholics who are mainly concerned about Social Security and think they are still voting for FDR when they walk in the booth.
I know some RC's (especially of Irish and Italian descent) who just cannot get past the image of the Republicans as anti-immigrant WASP's.
For people like that, no amount of hand shaking or philosophical agreement will make GW an acceptable candidate.
BTW, once again, this is reciprocal on the protestant/evangelical side. My wife's family is Southern Baptist, and you could not have found a better group of Clinton apologists and Gore supporters. They were both Southern Baptists, baby, and that's all there was to it!