This is not to say that abortion should not be an issue for Christians, but if one is concerned to emphasize things that are emphasized in the Bible, then social justice and the mistreatment of the poor by the rich should be closer to the top of the list, whereas the Christian Coalition doesn’t mention such concerns at all.
Do an online search. The word “poor” appears 178 times in the NIV. Try searching for “abortion“, “homosexuality”, or any other topic that is supposedly important to those who “vote the Bible” and see if the number of places these subjects are addressed even comes close, or speaks with the same directness and clarity.
So by all means vote the Bible, but only if you’ve read it and have some idea what it is about. Otherwise you’re deferring to someone else’s authority telling you what the Bible says, and you may later come to regret having allowed yourself and your vote to be manipulated in this way.