LAS VEGAS -- Newt Gingrich appeared to wipe a tear away Friday night after singing along to a moving rendition of "God Bless America" during a prayer meeting.

"While I want your vote, I need your prayers," the candidate told a congregation of approximately 500 people. "I hope that both Callista and I can be in your prayers because we will need them every day that we serve this country."

Other than attending Mass in the morning and holding a media avail tonight, Gingrich - who until now had maintained a busy public schedule every voting day - has nothing else on his calendar Saturday. The candidate says he has the "hope" of finishing second in the Nevada caucuses but is mindful that Ron Paul's organization may trump his chances.

"We're going all out to see if we can't be a good solid second here," an optimistic Gingrich told Greta Van Susteren Friday. "And then we're on to Colorado and Minnesota. Voting has already started in Arizona and in Ohio. We're going to be competing there."

The candidate called upon children in the congregation to join him on stage Friday night, the first time he had done so since South Carolina. It was a move that evoked memories of his earlier success, fitting given the Gingrich team's efforts to rejigger its operation after losing momentum in Florida.

On Fox News, Gingrich hinted at a potential path toward winning the nomination, saying he hoped to be "even with or slightly ahead" of Romney in total delegates by April 3. (read more)

TAMPA, Fla. -- Florida's primary might not be over just yet.

The Newt Gingrich campaign is gearing up to challenge the results of the Florida Republican presidential primary based on the Republican National Committee's own rules which state that no contest can be winner-take-all prior to April 1, 2012. (See RNC memo.)

It was assumed that Mitt Romney, who won Tuesday's contest, would gain all 50 of the state's delegates. But the Gingrich campaign plans to challenge Florida's allocation and demand the delegates be divvied up proportionally. (See Gingrich memo.)

Fox News has learned exclusively that on Thursday, a Florida Gingrich campaign official will begin the process of trying to have the RNC rules enforced so that the Sunshine State delegates are distributed based on the percentage of the vote each candidate got. (read more)

The pro-Newt Gingrich PAC "Winning Our Future" claims that "at least six" stations in Florida have -- as of Thursday -- been telling the group they need more documentation to run their ads.

"Stations all across Florida started to pull spots asking for fact checking," said Gregg Phillips, managing director of Winning Our Future, who accused the outlets of being "lazy" and suggested they were part of a coordinated effort across Florida to derail Newt Gingrich.

The SuperPAC currently has three ads running in Florida.

Phillips speculated this kind of fact-checking wasn't being done on Romney ads. Phillips, though, did not offer documentation detailing the pushback his PAC got from the stations.

"Why is it that Newt's PAC is getting fact checked and (Romney allies) are able to put up stuff with impunity. ... It's a concerted effort to destroy Newt Gingrich. The truth is going to come out. People said we're not going to let you run the ad. I promise you that's not happening with Romney. I've been doing this for 30 years, This is shameful - These are the pro-Newt spots. We're not talking about negative spots."

The SuperPAC, though, is releasing another anti-Romney film Friday afternoon called "Blood Money" -- TV ads excerpted from the movie will begin running as well. (read more)

CHARLESTON, S.C. -- In an event aimed at swaying undecided South Carolina voters, five Republican presidential hopefuls showed up in Charleston to make the case for why they should be the next GOP nominee.

The forum, hosted by former Arkansas Gov. Mike Huckabee on Fox News, barred the candidates from attacking or even mentioning each other.

Newt Gingrich paid little attention to that rule. When asked to "defend the vilification of companies willing to put capital at risk in order to save failing companies," the former speaker zeroed in on Mitt Romney.

"Governor Romney ran saying he created 100,000 jobs in the private sector. ... I believe it's fair to ask that records be clear."

The hit on Romney backfired. Before Huckabee could finish trying to stop him, the audience drowned out Gingrich with boos.

The rest of the GOP field didn't mention their Republican rivals but were equally peppered with questions from the undecided voters.

For Romney, that meant defending against accusations he's a flip-flopper.

"I think you'll find that I've served as a conservative governor," Romney insisted. "I love this country, and I'm convinced that the principles of conservatism are what will keep America the shining city on a hill." (read more)

SHENANDOAH, Iowa -- With just days left until the Iowa caucus, Newt Gingrich's campaign has become a family affair. It's not just his wife Callista joining him center stage at retail stops anymore. On Friday, his grandchildren Maggie, 12, and Robert, 10, also appeared beside him, along with his daughters Jackie and Kathy.

Some supporters long for the Newt Gingrich of the '90s who could decimate political opponents, especially after an NBC/Marist poll out Friday showed Gingrich tumbling into fifth place under the heavy barrage of negative ads put up by political super PACs. But soon after the poll results came out -- and before the sun had even risen -- Gingrich doubled down on his vow to run a positive campaign at a 7 a.m. breakfast at the Wakonda Club in Des Moines.

And, unlike past days when he seemed open to straying from that vow if given the opportunity, on Friday there was a high-minded level of seriousness about the way Gingrich talked staying positive and it focused specifically on the grandchildren who were now joining him on the campaign trail.

"Kids deserve somebody better than the current political system," Gingrich said when a man asked why anyone would want to run for president. "And if I have to get beaten up every day in the media, and attacked every day by a bunch of negative ads designed by consultants who know nothing and paid for by people who don't care what they do to this country, I will endure that for these kids." (read more)