Hmm...

Perhaps Pat Robertson feels that a pragmatic bargain to be made by having a republican, any republican, in the white house is worth the sacrifices on specific issues. Or perhaps he is merely committed to maintaining his support base and influencing them to his interests, and the religion he espouses is not a factor.

Mr. Robertson is an old man; Mr. Giuliani has powerful backers; that muscle or other influence could be used to procure a counterintuitive nomination is not impossible. We certainly know that evangelicals professing to represent a religion of peace have used their political influence to support war. This is just more of the same.

But Mr. Giuliani supports gay rights, gun control, and the right to abortion. He's also a nonpracticing catholic--the worst kind in the eyes of the evangelicals. These points are just about all the religious right cares about.

This is speculative, but it seems that perhaps Mr. Robertson is not comitted to his religion or to those issues but to political power and influence. The religious right as a whole? We don't know how much they'll listen to Mr. Robertson; the linked article talks about a decline in his influence, and also about the way this endorsement related to a personal friendship.

I don't think this is so much about the religion as about the power. They're friends, Mr. Robertson thinks he can influence Giuliani if he helps elect him. It's cronyism.

At least, that's my best thought on why it's possible.