By Laura Bernardini and Dan Merica, CNN

Washington (CNN) – Liberty University students and alumni are accusing the Christian school of violating its own teachings by asking Republican presidential candidate Mitt Romney, a member of the Church of Jesus Christ of Latter-day Saints whose adherents are called Mormons, to deliver its 2012 commencement address.

By Friday morning, more than 700 comments had been posted on the school's Facebook page about the Thursday announcement - a majority of them decidedly against the Chancellor Jerry Falwell Jr.’s invitation, citing that the school had taught them Mormonism isn’t part of the Christian faith.

“I can’t support Romney and I am happy I decided not to walk (in the commencement) this year,” wrote student Josh Bergmann. “Liberty University should have gotten a Christian to speak not someone who practices a cult. Shame on you Liberty University.”

Janet Loeffler, a 53-year-old freshman at Liberty, expressed her anger at the decision when contacted by CNN. She also sent a copy of the page of the freshman textbook “The Popular Encyclopedia of Apologetics” which includes the passage, “Mormon doctrine stands in stark contrast to Jewish and Christian monotheism, which teaches that there is only one true God and that every other ‘God’ is a false god.”

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Loeffler’s daughter, Sarah Misch, 33, of Unionville, Virginia, who is also a student at the school said, “I am glad I am not graduating this year. I would not want to end my studies at a Christian university by being sent in to the world at commencement by a Mormon. We came to Liberty because of our faith in Jesus; not for political reasons.”

Holly Stanton Morgan, another student, posted to Facebook, “I am glad that my husband and I won’t be attending his commencement. Mormonism is not Christianity. My commencement is next year. Hopefully they choose more wisely.”

Mark DeMoss, a Liberty graduate, member of the Board of Trustees and a senior adviser to the Romney campaign, said on Friday, “We have had a Jewish commencement speaker, we have had a Catholic commencement speaker, and so, I think people are certainly entitled to their opinion. Social Media certainly provides an outlet for people’s opinions, but I think it is a great thing for the university.”

DeMoss also noted that the night before graduation is the annual Baccalaureate and that event will feature an evangelical Christian speaker.

Liberty University was founded as Lynchburg Baptist College in 1971 by the influential pastor and Moral Majority co-founder Jerry Falwell. He founded the school to be a Christian university for evangelical believers, according to Liberty’s website.

Today, Liberty brands itself as the largest evangelical university in the world, with 82,500 students enrolled either on campus or online.

Liberty University would not comment beyond the press release it sent out Thursday announcing Romney would speak. There will be 14,000 graduates for the May 12th ceremony. The University announced that it expected 34,000 guests.

Previous commencement speakers included previous Republican presidential candidates Sen. John McCain in 2006 and Ronald Reagan in 1980.

The relationship between Mormons and evangelicals has been tested as of late. With Romney as the presumptive nominee for the Republican Party, many political commentators are asking whether the evangelical base, an important voting bloc to the GOP, will come out for Romney.

If those votes hinge on how evangelicals see Mormonism, Romney may need further outreach to the evangelical community. A recent Pew Research Center survey finds that nearly half (47%) of white evangelicals say that Mormonism is not a Christian religion. Sixty-six percent responded the Mormonism and their religion are “very or somewhat different.”

The charge of Mormonism as a cult is not a new one for the Church of Jesus Christ of Latter-day Saints. Michael Otterson, head of public affairs for the Church, wrote about the word in a 2011 column.

“As part of the rhetorical warfare that has come to characterize modern American political discourse, it was only a matter of time before someone once again used the term “cult” to describe The Church of Jesus Christ of Latter-day Saints,” Otterson wrote. He went on to describe the word as a, “a neat, shorthand and rather lazy way of putting a whole group into a box.”

The nation’s largest evangelical denomination, the Southern Baptist Conference, lists the LDS Church as a cult. They specifically cite differences in theology surrounding salvation, baptism, belief in the Trinity, and marriage. A major sticking point between other Christian traditions and Mormons is the Book of Mormon, which Mormons believe is divinely inspired scripture and on par with the Bible. Other Christians do not recognize the Book of Mormon as scripture.

CNN reached out to a LDS church spokesman for further comment but they demurred, stating that the story was a political story.

A Romney spokesman did not respond to questions about the issue.

Not all Facebook comments were negative, though. Tom Johnson added, “Mitt Romney has been invited to give a motivational speech, not a religious sermon. His religious beliefs do not have anything to do with his ability to give a motivational speech at commencement.”

And Kathy Creech added, “I, for one, am pleased that the future President of the United States will be speaking there!”