Mainly, he vetoes taxpayer dollars going to pay for abortions. No wonder the Abortocrats hate him. :)
http://www.votesmart.org/voting_category.php?can_id=53270&type=category&category=2&go.x=14&go.y=7
So he is not, as I suspected, against peventative birth control. The left lied...gee, whoda thunk it?