Oh for crying out loud.
It's crap like this that drove me away from the Catholic Church 15 years ago. The Church tries to dictate its members' choices - which is fine and dandy if you happen to agree with Church doctrine, and not so pleasant if you don't. No premarital sex, no birth control, no abortion, no homosexuality (yet somehow it's ok for priests to bugger altar boys), and no voting for any candidate who supports abortion rights or anything else the Church doesn't like.
Also, I thought clergy weren't supposed to dictate to their congregants how they should vote? If they do, they risk losing their tax-exempt status.