Sorry for getting too close to a religion debate, Cloudy. As a social statistic issue, it seems a small majority of Catholics vote Republican, and it seems that a big portion of Catholics (maybe even majority) support the right to choose.
Here are more articles on the topic, if you are interested. Note that these articles do not debate the religion.
http://www.catholicvote.net/issues/a...s_abortion.htm
http://www.commonwealmagazine.org/ar...id_article=939
http://www.worldnetdaily.com/news/ar...TICLE_ID=23573