Analyzing the “Catholic” vote would be like analyzing the “protestant” vote. It can’t really be done because both groups are large and encompass widely varying political views.
What we do consistently see election after election is that faithful, committed church-going Catholics and “Bible-believing” Evangelicals vote pro-life. Less than committed Catholics and protestants do not consider their faith when voting and simply vote for what they believe are their self interests.
Personally I have no use for any of those in the latter category.
It is interesting that their self-interests also including fooling themselves into thinking they are doing a favor for the poor by electing Democrats. None of the Democrats' programs for the poor have worked so far: New Deal, Great Society, public housing, etc. They have only succeeded in destroying the family. My observation is that some well-off "Christians" are so self-identified with imagining that they care about "the little guy", that they feel justified in blatantly ignoring the littlest guys (the pre-born). This election cycle has inspired us to leave our old "peace & justice" parish and drive an extra 1/2 hour to go to a strongly pro-life parish. After visiting and hearing a homily where the priest stated in no uncertain terms that you were complicit in evil if you vote for a pro-abortion candidate and seeing that every Mass was concluded with a pro-life prayer, I knew that we had to migrate to where the priests and people were not afraid to stand up for God's truth.