As many Evangelicals showed up to vote this time as in 2008. What's missing are NEW VOTERS with the enthusiasm of the recent convert. They didn't showup. They don't exist. Once Romney got the nomination and had let everybody know nobody was going to play a part in anything meaningful in the direction of his super choreographed campaign, no one bothered to get more new voters lined up.
In the end just about as many people, Evangelicals included, voted for Romney as voted for McCain!
The blame must be accepted by the GOP-e and their feckless campaign analysts. They really screwed up.