It doesn't make someone a hypocrite to claim that his religion is the "one true" version and complain when other people say that his isn't. If you believe you're right then when other people say you're wrong that should get you at least a bit upset.
The question here is whether a voter can support a candidate of a different faith. In a pluralistic society such as ours it is almost mandatory. If each voter only voted for candidates of like faith then we would soon be Balkanized.
The hit against Mormons goes like this: "Well I don't mind that they have a different faith, but they lie when they say they are Christians and I won't vote for a liar."
But even between Christian faiths such as Catholicism, Orthodox, and the various Protestant faiths there are members who claim that the other faiths are not Christian. There are Protestants who believe that Catholics are not Christian, but pagan. There are Catholics that believe that Protestants are heretics. For some reason we no longer here about those disputes. The relatively few people that hold these intolerant views are by-and-large not given a microphone when they address large crowds.
I believe that Mormonism is close enough to certain forms of Christianity that Mormons do not lie when they call themselves Christians. Are Christian Scientists not Christian? They don't believe in the actual physical Christ. There are those that claim that because of this for Christian Scientists Christ never really suffered and died for our sins, therefore Christian Scientists are not Christian. It seems to me that Mormons who believe that Christ existed as a real person are at least one up on Christian Scientists in this regard.
Also, what about all of the Christians that believe that no one is a true Christian if they believe that abortion is OK or homosexual marriage is OK even if they have been attending a Christian church all of their life? Voters who oppose such candidates seldom say "He is a liar when he says he is a Christian." Rather they say "His position on abortion/gay marriage is wrong and un-Christian."
Mitt believes he is a Christian. He seems to be living a life that is well within the bounds of a typical Christian lifestyle. His main defects are his support for Romney/Obamacare and his waffling in general. I'd call him a liar based on the changing of his positions on abortion before I'd call him a liar based on him calling himself a Christian.
Mormonism is more than “un-Christian”. It’s ANTI-Christian.
He can hang a mercedes-benz symbol around his neck - that won't make him a car.
Christian conservatives knew that Obama did not belong to their faith and they voted accordingly.
They’ll do the same when they decline to vote for Romney.
Then according to your (about) third paragraph you know nothing of mormonISM.
Yes, it does - if it goes against the Bible. Now if you want to say that the Bible is wrong, that is another thing.
Might as well just openly support Romney for the nomination.