SALT LAKE CITY -- Five years ago, as Republicans were getting to know Mitt Romney, a Gallup poll showed 30 percent of GOP voters expressly saying they wouldn't vote for a Mormon for president.
Now, with Romney a lock for his party's nomination, that anti-Mormon voting bloc has dwindled to 10 percent in the latest Gallup survey.
It is a seismic shift in voter attitudes that could be attributed partly to the idea of rallying around the GOP standard-bearer or, more precisely, to the notion that party loyalty trumps long-held religious objections.
Even Texas Pastor Robert Jeffress, who had once dismissed Romney's Mormon faith as a "cult," now argues that there's "every reason to support Mitt Romney."
Gallup first polled on whether Americans would vote for a member of The Church of Jesus Christ of Latter-day Saints when Romney's dad, George Romney, sought the White House in 1967. Back then, 17 percent of all voters (and 13 percent of Republicans) said they wouldn't vote for a Mormon commander in chief.
Overall wariness about a Mormon presidential candidate has fluctuated a bit in the 45 years since, with some polls showing a quarter of Americans opposed and others stretching higher. Republicans have varied in their stated angst about an LDS nominee, but never to as low as now.
Evangelical voters had backed other contenders -- Rick Santorum, Newt Gingrich, Rick Perry -- in the Republican primaries, but "they're all swinging over" to Romney now that he's the nominee, says Frank Newport, editor in chief of Gallup.
"People who have a strong party allegiance will, in some instances, hold their noses and vote for that nominee," Newport says, "particularly when (that nominee) is opposed to someone they don't like, which is certainly the case with Republicans and the current incumbent."
Even so, the key to all polls on the Mormon question may be how independents view it. In the latest survey, 18 percent of independents said they would not vote for a Mormon, about the same number, give or take a few points, as all along. Nearly a quarter of Democrats (24 percent) said the same.
Voter objections to a Mormon White House hopeful have averaged 18 percent from the 1960s to now in Gallup surveys -- with the exception of the latest Republican bloc.
Newport says voters often think of a specific presidential candidate when asked about gender, religion or race.
"The (Mormon) question had no mention of any particular person," he says, "but I think a lot of Republicans hearing the question said, 'Sure, no problem' because they were thinking in their own minds it was Romney and they'd certainly want to vote for their party's nominee."
In fact, for the first time ever on the question, none of the Republicans in the June survey said they didn't know or were unsure of their answer on whether they'd vote for a Mormon president.
"Increasingly, people are aware that Romney is Mormon," says Quin Monson, director of Brigham Young University's Center for the Study of Elections and Democracy. "It's probably a function of people who are more partisan who are aware. You've got some Republicans who are not very open to a Mormon who are reconsidering now that their party has nominated a Mormon."
Translation: GOP disdain for Obama could be wiping away the fear of what church a potential Republican replacement attends.
With the exception of a major speech he gave in December 2007 detailing how LDS leaders wouldn't dictate his actions as president, Romney has largely avoided talk about his faith -- one shared by just 2 percent of Americans.
He mentions God in stump speeches and occasionally cites the Bible but hasn't been as open to talking about his belief in the Utah-based faith's signature scripture, the Book of Mormon, or other LDS theology.
Monson, himself a Mormon, doesn't think Romney has done much to prompt the change in those now willing to vote for a Mormon.
"He's benefited from the run-up to the nomination," Monson says. "It was a monumentally weak field, and there is an incumbent Democrat that Republicans love to loathe. That's allowed him to make it through the nomination gantlet."
Contact reporter Thomas Burr at email@example.com.