Some of the more strident Protestants might have similar thoughts regarding, say, the Catholic Church, with it's alleged "Goddess Mythology" and other supposed embellishments. (Catholics: this is not my opinion, I'm using it as an example of apparent intolerance between different religious groups.)
Just sayin', although I, too, would tend to consider Mormonism as a potentially more extreme case.
I have no doubt that there have been at least some US Presidents who were probably atheists, although they might have identified with some Christian denomination for political expediency.
Would a devout Mormon President be any worse than that?
I despise Romney's politics, but I do think that it is at least theoretically possible that a Mormon could be a moral President, despite the strange "additional" beliefs.
I've wrestled with the notion of some kind of litmus test relating to this issue and the US Presidency, and my current conclusion is that a Presidential candidate's stated policies are the primary consideration.
The reasons that I won't ever support Romney run far deeper than his Mormon beliefs...
HMMM...
How does one KNOW if the 'mormon' is DEVOUT or not?
By how they follow their own SCRIPTURES?
By how they KEEP THEIR VOWS TO GOD?