If the opponent is likely going to be a Clinton what else would a host ask?
Mormons have a very honest and moral image. The Mormon image as perceived by most Americans is based on the image of Donny and Marie Osmond. That is one squeeky clean image.
That is why Mitt won half the religious right votes in Michigan.
Donny and Marie?! They aren’t puppies anymore and they sure aren’t squeeky clean.