To be fair, to be able to carry out his agenda, he needs enough support with in his party. I think there is a reason he didn’t run, and that’s because he have enough party support. I think it indicates that the party is splintering along lines of the traditional GOP and the religious oriented GOP that emerged in 1980 with the Reagan revolution. I think if he had the support he’d need to already be president, he’d already have it. But while there are plenty of people who would back his anti-LBGQT and anti-woman agenda, it’s no longer a majority of the party, even if it’s still a vocal minority. This wing of the party can throw it’s weight around locally/state-wide, but not nationally, and they know it. I think if he became president, he would be another Ford. I don’t think he’d win re-election, because he’s too extreme for the other parts of the party, especially some younger, libertarian leaning GOPers who don’t care nearly as much about social issues as they do about tax cuts.
I could be wrong, of course, but I think that if the religious right could have won elections straight out, they would have. They’ve been trying and planning and the closest they got was W.