With Mitt Romney looking to grab the Republican nomination for president there has been much written about his Mormon faith and how it impacts his electability. The vast majority of what has been written has been about understanding Mormons, and exploring how much non-Mormons are biased against Mormons.
A recent Pew Research article says that 46% of Mormons believe there is a lot of discrimination against them, and 68% believe that the American people do not see Mormons as part of mainstream American society. There's an awful lot of "yes we are really Christians!" and hurt tones in all of this, too. But really, what has been conspicuous by its absence in all this debate has been the fact that the Mormon church thinks your church (any kind of Chirsitan church) sucks. They just don't come right out and tell you that.
Setting aside the fact that their beliefs about the nature of God and the church are actually at odds with any mainstream Christian interpretation, the magic underwear, the secrecy and the baptising of dead non-Mormons into the Mormon church, I think the main problem with seeing the Mormon church as any part of "true" Christianity lies in what they believe about actual Christian churches.
The Mormon's own website lays it all out for you in their discussion of the restoration of the church.
If I may sum up their position in my own words:
a) It all went to hell in a handbasket in 70 AD when the last apostle was killed. This, in their words, is the beginning of the Great Apostasy.
b) Luther and Calvin kind of paved the way for a sort of religious tolerance (that's almost funny when you consider Calvin...) that opened the door for Joseph Smith to save the day. From that same page:
Joseph had to decide which of the many Christian denominations to join. After careful study, Joseph Smith still felt confused as to which Christian church he should join. He later wrote, “So great were the confusion and strife among the different denominations, that it was impossible for a person young as I was . . . to come to any certain conclusion who was right and who was wrong. . . . In the midst of this war of words and tumult of opinions, I often said to myself: What is to be done? Who of all these parties are right; or, are they all wrong together? If any one of them be right, which is it, and how shall I know it?” (Joseph Smith—History 1:8, 10).
I certainly sympathize with Joseph. Even today the plethora of denominations is confusing. What the Mormon website omits is the conclusion of that Joseph Smith dilemma (from the very same book):
I was answered that I must join none of them, for they were all wrong, and the personage who addressed me said that all their creeds were an abomination in His sight: that those professors were all corrupt . . ." (Joseph Smith, "History of the Church, Vol. 1, page 5-6.)
So Joseph's answer to too much choice was to create yet one more choice. One full of fictitious ancient civilizations that colonized America then disappeared without trace, among other quaint notions.
c) Meanwhile, that Great Apostasy? It's still around, and your church is still in that handbasket.
So while the Mormon church decries any effort to paint them as non-Christian, not only are they not Christian, they despise the very basis of the faith of the mainstream Christian church.
So how much does this or should this affect the electability of Mitt Romney?
Well, it's your vote and you get to decide.