BEAUFORT, S.C. — In an up-and-down kind of campaign day, Republican presidential candidate Newt Gingrich picked up an endorsement Thursday from former rival Rick Perry which could bolster his conservative support but also faced new accusations from one of his former wives that he had asked her permission to have an "open marriage" after she learned he was having an affair. A campaign spokesman said the former House speaker disputed his ex-wife's account.
"It couldn't be any more opposite of the truth," R.C. Hammond told The Associated Press.
Gingrich also prepared to release his 2010 income tax returns, certain to bring fresh scrutiny to his campaign.
Two days before the pivotal South Carolina primary, Gingrich's political and private life were clashing just as new polls showed him rising as he looks to overtake GOP front-runner Mitt Romney in the third state to weigh in on the presidential race. Gingrich has seen his crowds grow in recent days after a strong performance in a debate Monday.
With the second debate of the week looming Thursday night, it was unclear how the new revelations from Marianne Gingrich would play in a state where religious and socially conservative voters hold sway.
Equally uncertain was whether Gingrich would get a boost from Perry's endorsement, given that the Texas governor had little support in the state, and get conservative voters to coalesce behind his candidacy. Complicating Gingrich's effort is another conservative, Rick Santorum, who threatens to siphon his support.
"Newt is not perfect but who among us is," Perry said as he bowed out of the race and called Gingrich a "conservative visionary."
It was all but certainly intended to counter the interview with Marianne Gingrich, her first on television since the divorce from Gingrich in 2000, that ABC News was set to broadcast Thursday night.
In excerpts the network released before the broadcast, Marianne Gingrich said that when she learned of Gingrich's affair with Callista Bisek, a congressional staffer, he asked his wife to share him.
"And I just stared at him and he said, 'Callista doesn't care what I do,'" Gingrich' second wife said. "He wanted an open marriage and I refused."
Gingrich brushed aside reporters' questions after a campaign event along the waterfront in Beaufort, S.C. on Thursday.
"Look, I'm not going to say anything about Marianne. My two daughters have already written to ABC complaining about this as tawdry and inappropriate," he said.
Gingrich has said in the past that tough questions are fair game for a candidate running for president. But on Thursday he referred all queries about his second marriage to his two daughters from his first marriage.
"I'm not getting involved," he said.
Later in the day, Hammond told the AP that Gingrich never asked Marianne Gingrich for an "open marriage."
"Divorces are very tough and people have very different recollections of how things happen," Hammond said.
The television interview with Marianne Gingrich threw a wild card into the race in its final hours.
Its mere existence shines a spotlight on a part of Gingrich's past that could turn off Republican voters in a state filled with religious and cultural conservatives who may cringe at his two divorces and acknowledged marital infidelities.
Marianne Gingrich has said Gingrich proposed to her before the divorce from his first wife was final in 1981; they were married six months later. Her marriage to Gingrich ended in divorce in 2000, and Gingrich has admitted he'd already taken up with Callista Bisek, a former congressional aide who would become his third wife. The speaker who pilloried President Bill Clinton for his affair with Monica Lewinsky was himself having an affair at the time.
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