Harry Reid is a "Jack Mormon". You cannot be a devout Mormon and support abortion on demand. It's a moral impossibility. He has taken numerous other stands inconsistent with Mormon teachings. So Harry's political positions would disincline Mormons from voting for him, not the reverse as you state. What, then, is Mitt Romney, having taken stands inconsistent with Mormon teachings as he has over the course of his political career? Are Mormons disinclined to vote for him as a result, too, or does he get some sort of special consideration because he's wavered back and forth like a weathervane?
Romney got 92% of the vote in UT, so the lds did vote for him even though every political position is opposed to lds teachings.