Mitt out in Iowa, Gingrich outed by ex-wife, Perry just out in countdown to tonight's debate

NORTH CHARLESTON, S.C. (AP)

The race for the Republican presidential nomination is veering toward South Carolina surreal.

Mitt Romney was stripped of his Iowa caucus victory Thursday, when

Iowa Republican Chairman Matt Strawn said the party would not name an official winner because the results were so close and some votes couldn't be counted. Results from eight of the state's 1,774 precincts were not certified to the state party by Wednesday's 5 p.m. deadline.

Then Romney was stung by Texas Gov. Rick Perry's withdrawal and endorsement of Newt Gingrich, the former House speaker who was stunningly accused in turn by an ex-wife of seeking an open marriage so he could keep his mistress.

"Newt's not perfect, but who among us is," said Perry, abruptly quitting the race shortly before an evening debate and less than 48 hours before the polls open in Saturday's first-in-the-South primary.

His decision to end a once-promising candidacy left Romney, Gingrich, former Pennsylvania Sen. Rick Santorum and Texas Rep. Ron Paul the remaining contenders in the race to pick a Republican to challenge Democratic President Barack Obama this fall.

Recent polls, coupled with Perry's endorsement, suggested Gingrich was the candidate with the momentum and Romney the one struggling to validate his standing as front-runner. Whatever else the impact, the day's events reduced the number of conservatives vying to emerge as Romney's principal alternative.

The former Massachusetts governor had other challenges in a state where unemployment approaches 10 percent. He adamantly refused to explain why some of his millions were invested in the Cayman Islands, how much was there or whether any other funds were held offshore.

Under pressure from his rivals to release his income tax returns before the weekend - a demand first made by Perry in a debate on Monday - he told reporters it wouldn't happen. "You'll hear more about that. April," he said.

Gingrich grappled with problems of a different, possibly even more crippling sort in a state where more than half the Republican electorate is evangelical.

In an interview scheduled to air on ABC News, Marianne Gingrich said her ex-husband had wanted an "open marriage" so he could have both a wife and a mistress. She said Gingrich conducted an affair with Callista Bistek - his current wife - "in my bedroom in our apartment in Washington" while she was elsewhere.

"He was asking to have an open marriage and I refused. That is not a marriage," she said in excerpts released by the network in advance of the program.