I could not vote for President Obama and claim to be a faithful Catholic. I could not in good conscience support a man who is not only so hostile to the Church (there are plenty such people), but who is willing to use the power of the government to further a sort of kulturcampf. It's one thing to enact policies which are contrary to the Church's stance on some issue. Most politicians--Catholic or otherwise--have and will on a variety of issues, and are little worse for it. There are indeed some such things, even some important hings, which would be pointless or even downright detrimental to regulate. Others are a matter of prudence.
The president has gone beyond this. His policies are not a matter of prudence, but rather look quite calculated to destroy the Church, or at the very least to silence her and dictate what she can and cannot teach, to remove her from the public square. There are many who do not think that the Church ought to have a place in the public square, that Catholics (and people of other religions, for that matter) ought to be allowed the freedom to worship, and nothing more.
Read the rest on the Nicene Guys site.
Vote for anybody other than President Obama in 2012.