CHARLESTON, S.C. — Seeking to curtail damage to his campaign, presidential contender Newt Gingrich on Thursday angrily denied that he asked his second wife for an "open marriage" that would allow him to have a mistress as she made the claim in an interview broadcast two days before the South Carolina primary.
"Let me be quite clear. The story is false," Gingrich said at a debate here.
At the same time, his campaign released his tax returns, showing that he paid $994,000 in federal taxes on more $3.1 million in income in 2010.
It was a day of ups and downs for Gingrich, who picked up the endorsement for former rival Texas Gov. Rick Perry. The former House speaker is working to consolidate the support of conservatives behind his candidacy with polls showing him rising in his bid to overtake GOP front-runner Mitt Romney.
"Newt is not perfect but who among us is," Perry said as he bowed out of the race, providing Gingrich some political cover in a state filled with evangelicals likely to cringe at Gingrich's two divorces and acknowledged infidelity.
Gingrich's ex-wife threatened to throw his campaign off course, raising an issue from the past that Gingrich has worked to put behind him during his campaign.
In excerpts the network released earlier in the day, Marianne Gingrich told ABC News in an interview being broadcast late Thursday that when she discovered Gingrich was having an 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,'" Marianne Gingrich told ABC News. "He wanted an open marriage, and I refused."
She confirmed to The Associated Press that the former speaker had asked her for an open marriage, but she refused his request. She declined to comment further.
At the debate Thursday, Gingrich forcefully denied his ex-wife's charges and castigated debate moderator — CNN's John King — for raising the issue at the start of the two-hourlong event.
"I think the destructive, vicious, negative nature of much of the news media makes it harder to govern this country, harder to attract decent people to run for public office," Gingrich said. "And I am appalled that you would begin a presidential debate on a topic like that."
As he stood on stage in Charleston, his campaign released his 2010 income tax returns, which showed he paid roughly 31.6 percent of his adjusted income in taxes, giving about 2 percent to charity. Gingrich criticized rival Romney this week for saying he paid only 15 percent.
Personal financial disclosure forms filed last summer show Gingrich is worth more than $6.5 million. He reported at least $500,000 in assets from Gingrich Productions, his media company that produces books and films.
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 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.
It was unclear how the new revelations from Marianne Gingrich would play in a state where religious and socially conservative voters hold sway. The interview's 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 then President Bill Clinton for his affair with Monica Lewinsky was himself having an affair at the time.
- Canada man finds an Elizabeth Gallagher for...
- Final goodbye: A roll call of some who died...
- Final goodbye: Roll call of some who died in...
- 82-year-old caught in Sydney hostage...
- Vermont governor abandons single-payer health...
- Utah mourners for Pakistani children killed...
- 10 Things to See: A week of top AP photos
- Obama: US re-establishing diplomatic...
- Obama: US re-establishing diplomatic... 48
- End gun violence, say faith leaders on... 32
- Vermont governor abandons single-payer... 31
- Police: 3 dead, including gunman, in... 18
- Sony cancels 'The Interview' Dec. 25... 15
- Taliban assault on Pakistan school... 12
- Utah football's Hackett, Orchard named... 11
- NYC premiere of Rogen film 'The... 8