Well, I understand his viewpoint; it’s basic Christian theology, and I don’t care that such is his belief. It’s nothing new.
To the extent he ceases to be a faithful representative to persons who don’t share his theology because of his theology or choses to use his power as a (potential) elected official, however, there is an issue.
Jewbacca, are you going to set some sort of "test" for political office that effectively bars anyone from running unless he/she subscribes to the notion that "all religions are equally beautiful, truthful, and savage mythologies and anyone who still actually believes in one belongs in a mental institution???"
Jewbacca, I'm a former chrstian. If you're "going to hell" (chas veshalom!), then so am I! Yet I'm not afraid of them coming after me, and if they were to come after anyone it would be me and not any Orthodox Jews!
The notion that there is some secular universal objective standard has never been anything other than hooey. Chrstians consider the various versions of chrstianity (and their number is infinite) to be the only objective standard and you and I so consider the Torah! Being in politics does not grant one a license to betray G-d!