Newt Gingrich will make his first appearance with presumptive GOP nominee Mitt Romney on May 29 in Las Vegas.

NBC News has learned the former House speaker will attend a fundraiser for Romney at Trump Towers in Las Vegas Tuesday evening. Donald Trump will also attend.

The last time Gingrich and Romney were in Nevada together was in early February, amid a bitter fight for the nomination.

Rumors broke just days before the Feb. 4 Nevada caucuses – and were confirmed by several news outlets -- that Trump himself would endorse Gingrich. Hours later, however, the casino mogul endorsed Romney.

A joint public event with the two former competitors may occur next month.

In his drop-out speech Wednesday, Newt Gingrich singled out one of the two primary states he won: South Carolina, whose 30-year streak of picking the eventual nominee Gingrich acknowledged he had officially ended.

“I have to thank the voters of South Carolina, and I have to apologize to them,” Gingrich said. “We will have broken their tradition of always picking the nominee. This will make me feel slightly guilty every time we go through South Carolina.”

But Palmetto State experts insist that the first-in-the-south primary state’s importance as an early presidential bellwether remains unchanged – even if the current Republican Party slogan -- “We Pick Presidents” -- is no longer completely accurate.

“Think of it as, if you’re a marketing director for a product, and you have all these slogans to sell your product,” Winthrop University political science professor Scott Huffmon pointed out. “You’ll drop that from your advertising but you’ll still stress everything else.”

He noted that South Carolina would remain the first test of candidates’ strength in the delegate-rich South.

“At last count we have something like 160 Electoral College votes, and you need 270 to win,” Huffmon said. “If you can find a Republican who can appeal to the entire South, and they’ve got almost 60 percent of all the Electoral College votes that they need to become president.”

South Carolina can still sell its primary, Huffmon added, as the place “where the presidential mettle gets tested… where you have to face the first fiery brands of Southern conservatism and see if candidates can stand up.”

State Republican Party Chairman Chad Connelly also said he didn’t think the state’s reputation would suffer as a result of its picking a candidate other than the party nominee.

“We might not have our same branding motto or whatever, but the fact that we’re an important part of the process, that hasn’t changed a bit,” Connelly said, noting that the state’s small size and relatively inexpensive media markets allow campaigns with varying amounts of resources to be competitive – something he suggested strengthens the eventual nominee.

“I think Gov. Romney will tell you that he’s a better candidate, he’s a better debater, he’s better with the people than he was before because of this whole process,” Connelly said. Romney lost South Carolina 40-28 percent to Gingrich. 

Connelly stressed that he’s not considering changing the state party’s motto any time soon, focusing more on raising money to send South Carolina volunteers to other swing states to help with Republican get-out-the-vote efforts.

And as far as Gingrich’s apology to the voters of South Carolina, at least one of his supporters says there are no hard feelings.

“He owes no one an apology,” said Allen Olsen, a former Columbia Tea Party leader and one of Gingrich’s earliest proponents in the state. “He just got beat, and I don’t think he owes South Carolina an apology. I’m just proud to support him.”

But, Olsen added, now that Romney has prevailed, he said he wished Gingrich “hadn’t come off sounding like a sore loser” in his speech Wednesday.

“I wish he would have come off and endorsed Romney and offered to work with Romney more,” Olsen said.

MOORESVILLE, NC -- Even though his presidential campaign "will go bye-bye," Newt Gingrich on Thursday said he and his wife plan to campaign through the fall to help presumptive nominee Mitt Romney.

"I'm going to look at how I can be helpful, because I suspect people will still show up to hear me," Gingrich told voters at luncheon here. "Callista and I are going to campaign through October."

Though today, just 25 people attended the midday event here, leaving a roomful of empty chairs. Some of those seats were taken by Secret Service, an area the campaign has taken heat for recently because of the thousands of dollars the protection was costing taxpayers, even Gingrich he had become more of a sideshow than serious contender for the GOP nomination.

After losing the Deleware primary on Tuesday, the latest in a long string of electoral defeats, the former Speaker of the House acknowledged he will end his campaign next week. He will continue with his packed schedule through North Carolina, saying he felt an obligation to fulfill previous commitments here.

"The campaign will go bye-bye, but I'll be a citizen," Gingrich told a supporter asking about the candidate's future. "I've been an active citizen since I was 15."

The once top-tier GOP candidate said he would welcome the opportunity to stump for former rival Romney. He has spoken to the former Massachusetts governor and Republican National Committee Chair Reince Priebus about playing a role in the party going forward. At a stop at a diner here this morning, Gingrich continued his pledge to forge ahead to the summer convention in Tampa -- only now, as a citizen and not a candidate.

"We're also going to go back to the private sector to earn some money," Gingrich said. "It's been a long, expensive 2 years."

Gingrich's now-bare-bones campaign faces deep debts; he had previously been a paid contributor to FOX News, but criticized his former employer, saying he could get a fairer shake from CNN; and his flagship company, The Gingrich Group, filed for Chapter 7 bankruptcy earlier this year.

"I ran for president and, candidly, wished I had done better," Gingrich said Thursday morning. "But I learned a lot."

And while the former frontrunner says he's eager to help, it likely will not be on the Romney ticket. "I think the vice president will be somebody much younger," Gingrich said. "That would be my advice to Romney."

CRAMERTON, NC –- Newt Gingrich finally admitted Wednesday morning that Mitt Romney will be the Republican Party’s nominee for president this year.

Addressing supporters inside a local diner here following a disappointing second place finish Tuesday night in Delaware's primary, Gingrich went a step closer toward ending his presidential race this morning, after hinting at it last night during his election night speech.

RELATED: Gingrich loses again, signals exit from race

"You have to, at some point, be honest about what's happening in the real world as opposed to what you would like to have happen. Gov. Romney had a very good day yesterday,” he said. “You have to give him some credit. This guy has worked 6 years, put together a big machine and has put together a serious campaign.”

The former House speaker went on to recognize Romney –- the former Massachusetts governor who swept all 5 primaries yesterday –- as the man who will compete against President Obama in the fall.

“I do think it's pretty clear that Gov. Romney is ultimately going to be the nominee and we'll do everything we can to make sure that he is, in fact, effective, and that we as a team are effective both in winning this fall and then, frankly, in governing," Gingrich said to the roughly 75 people in attendance, noting he still believes he would be a better candidate.

Calling himself a “citizen” multiple times inside Georgio’s Restaurant, the speaker vowed to stay involved in the presidential race and admitted he is working out the details of his “transition” this week (although would not define the meaning of his transition when asked by reporters following the event).

"We're going to stay very, very active,” Gingrich promised. “But I am committed to this party. I am committed to defeating Obama. We will find ways to try to be helpful."

Gingrich will continue “campaigning” in the Tar Heel State through Friday before heading back to Washington, D.C. to attend the White House Correspondents Association dinner on Saturday night.

BALTIMORE, MD -- Newt Gingrich considers himself a man of “really big ideas” and has used his presidential run to share them with thousands of Americans.

The former House speaker faced criticism from opponents for being “grandiose,” which prompted Gingrich to respond in January: “I accept the charge that I am grandiose and that Americans are instinctively grandiose."

While Gingrich continues fighting the increasingly uphill battle of trying to become the Republican nominee, here is a recap of some of the more fantastical ideas he has thrown out over the past 10 months of the campaign.

CREATING A MOON COLONY
"By the end of my second term, we will have the first permanent base on the moon. And it will be American." – Cocoa, FL 1.25.12

AP / Evan Vucci

Republican presidential candidate, former House Speaker Newt Gingrich, center, and his wife Callista, tour the Wilheit Packaging factory in Gainesville, Ga.

DESTINY IN SPACE
“I want to restate, far from backing off, I want to restate, America has a destiny in space. It is a part of who we are. We are not going to back off from John Kennedy’s challenge and we are not going to go timidly into the night allowing the Chinese to dominate the future of space.” – Huntsville, AL 3.6.12

SEND PACKAGE TO ILLEGALS
“UPS and FedEx move twenty four million packages a day and track them in virtually real time. Over here is the federal government, the world that fails. And let me give you an example of what I’m talking about: twenty four million packages tracked while they move; eleven million illegal visitors sitting still. Or 15 million. One of my proposals is very simple. We send a package to every person who’s here illegally. When it’s delivered, we pull it up, we know exactly where they are. It’s on the computer.” – Council Bluffs, IA 11.30.11

NATIONAL SECURITY
“You think about an Iranian nuclear weapon.  You think about the dangers – to Cleveland, or to Columbus, or to Cincinnati, or to New York.   Remember what it felt like on 9/11 when 3100 Americans were killed.  Now imagine an attack where you add 2 zeros.  And it’s 300,000 dead.  Maybe a half million wounded.  This is a real danger.  This is not science fiction.  That’s why I think it’s important that we have the strongest possible national security.” – Cleveland, OH 2.8.12

CHANGE ALL OF AMERICA
“You have a bipartisan establishment that has been running this country, that has created a gigantic mess.  You have bureaucracies that are out of control, judges who think they can be dictators.  You have systems around this country.  You have laws that don’t work.  So, we have got to change not just Obama, we have got to change the entire direction of the United States of America to get it back on track and that is our obligation to these young people." – Rock Hill, SC 1.11.12

HOW TO FIX GAS PRICES
“The long-term answer is American’s producing their own energy and telling other people, ‘you may have a problem, we don’t because we can be the largest oil producer in the world by the end of this decade. Bigger than Russia, bigger than Saudi Arabia. We have vastly more resources than any other country if we use them.” – San Francisco, CA 2.25.12

AFGHANISTAN
“We’re not going to fix Afghanistan.  It’s not possible…There’s some problems where what you have to do is say, ‘You know, you’re going to have to figure out how to live your own miserable life because I’m not here – you clearly don’t want to hear from me how to be unmiserable.’  And that’s what you’re going to see happen.” – Nashville, TN 2.27.12

ISLAMIC WORLD
“I believe we need to reassess every element of our relationship with the Islamic world and we need to be prepared to do whatever it takes to become economically independent and to be able to tell the truth. And American president who cannot tell the truth cannot possibly defend this country.” – Rome, GA 2.28.12

MEET WITH DEMOCRATS AND PUT THEM IN GROUPS
”Between the election and the inauguration, I will try to meet with every Democrat individually and sit down with them face to face and say look I’m going to be here for four years and what is it that you’re trying to get done that’s compatible with what I’m trying to get down. Now, they’ll break down into three groups. There will be the crazies. We won’t invite them back. There will be hardheaded guys who you can get occasionally. And there will be folks who say I’m glad we’re trying to do this together, let’s see what we can get done.” – Mobile, AL 3.10.12

PAY-PER-VIEW DEBATE
”Let me just say to the president: I will be glad to debate him anywhere, any time, and I’ll go a step further just to make it non-political. We ought to debate on pay-per-view and we ought to charge ten bucks to watch the debate, and it ought to go to a charity of our mutual choice, and it would be the largest charity fundraiser in the country this year. And the topic ought to be price of gasoline.” – Shreveport, LA 3.20.12

ATTITUDE OF MODERN WORLD
“The psychological attitude of the modern world is such that if Thomas Edison invented the electric light in the modern era, it would be reported on the network news as the candle making industry was threatened today. And somebody on the left would jump up and say this was all an excuse for killing poor people by putting electricity in their homes, and who knows what the electricity will do to them. And is this really a gamble to electrocute people? Think about -- Everything we do nowadays is negative.” – Frederick, MD 4.2.12

OBAMA/BIRTHDAY CAKE RECIPE
“If you went to somebody who was a great cook and you said ‘do you think you can bake a birthday cake’ and they said ‘sure I can bake a birthday cake,’ the odds are pretty high they’ll be able to bake a birthday cake. Now it helps to have a recipe for birthday cakes and it helps to have baked one. President Obama’s biggest challenge is, that he has exactly the wrong ideas. He belongs to an ideology that believes the way you get hard eggs is you freeze them (laughs)…. This is his whole problem with job creation.” – Dyersville, IA 12.27.11

FOOD STAMPS
“And so I’m prepared, if the NAACP invites me, I’ll go to their convention to talk about why the African American community should demand pay checks and not be satisfied with food stamps. And I’ll go to them and I’ll explain a brand new social security opportunity for young people, which would be particularly good for African American males, because they’re the group that gets the smallest return on social security…” – Plymouth, NH 1.5.12

PAY KIDS TO WORK
“You have a very poor neighborhood. You have kids who are required under law to go to school. They have no money, they have habit of work. But what if you paid them part time in the afternoon to sit in the clerical office and greet people that came in. What if you paid them to work as the assistant librarian? And I’d pay them as early as was reasonable and practical. And then we get into the janitor thing. These letters were written saying janitorial work is really hard and really dangerous. Fine. So what if they became assistant janitors and their job was to mop the floor and clean the bathroom and you pay them?” – Des Moines, IA 12.1.11

BEAR ARMS IN OUR TRUCKS
“You can’t put a gun rack in a Volt. So, let’s be clear what this election is all about. We believe in the right to bear arms and we like to bare the arms in our truck, there.” – Peachtree City, GA 2.17.12

NOT BOW TO SAUDI KING
“If you would like to have a national American energy policy, never again bow to a Saudi king and pay $2.50 a gallon, Newt Gingrich will be your candidate.” – San Francisco, CA 2.25.12

IRAN
“We should indicate calmly and decisively that any act to close the Straits of Hormuz will be considered an act of war and we will eliminate the government of Iran.” – Knoxville, TN 3.5.12

IMMIGRATION
“I think the vast majority of them should go home. And we should be very clear about this. If you are here without any great ties to the United States and you came here illegally, you just need to leave and apply for the guest worker program from back home. Period…I do think that if you have somebody in your neighborhood who has been here for 25 years, and they belong to your church and they have three kids and two grandkids, and they have been paying taxes and working hard the entire time, it’s going to be very, very hard to get the American people to agree that we should tear up those families and expel them.” – Naples, FL 11.25.11

COURTS
“I do think it’s legitimate for the Congress and the president to address the 9th circuit’s aggressive anti-religious bias but I think that will be done with other methods. I’d ask the Congress to look seriously at either impeaching or replacing the 9th circuit.” – South El Monte, CA 1.15.12

GINGRICH TREATY
“I proposed yesterday what Chris Cox of the NRA called the Gingrich Treaty. As president, I would propose that the United States submit a treaty that says that the right to bear arms is a universal human right and that every human being on the planet should have the right to bear arms. That the Second Amendment should apply everywhere." – Raleigh, NC 4.14.12

BRAIN SCIENCE RESEARCH
"The number of things we'll learn by learning about the brain will absolutely pay for itself probably by a thousand to one or better. Literally in terms of cost to the government … This is a very big idea in an area that I don't know of any political leader who is willing to tackle that would lead to a dramatic explosion of new science that would lead directly to a better quality outcome for health which would lower the cost of healthcare which would help solve our long term budget problems and would create a huge new zone of creating American jobs. But it requires having a conversation in an area the people just aren't used to talking about politically.” – Iowa City, IA 12.14.12

DOVER, DE -- Given the opportunity to work in Mitt Romney’s cabinet, Newt Gingrich says he would pass.

Asked by a radio host inside a small diner whether he would work for a Romney administration if given the opportunity, Gingrich answered “probably not” but “not because I am opposed to Mitt.”

“Look, if the choice does end up being Romney versus Obama, I can be very, very enthusiastic for Romney, that is a huge choice. But I had a very good life doing a lot of fun things,” the former House speaker said. “I am very happy to be an adviser. I did a lot of that in the Bush administration both on health care and national security.”

Romney seems to have all but sealed the nomination – he still has not reached the 1,144 delegate count threshold – but Gingrich says he has more explaining to do.

“I’m making the case for a very ideas-oriented, solutions-oriented kind of conservatism, and I think Romney is going to have to explain a lot more of what he would actually do as president,” he said.

Gingrich also leveled sharp charges toward President Obama as well at the Hollywood Diner, where he was interviewed on Elliott in the Morning radio show.

“The thing that Obama does that’s fascinating is,” Gingrich said. “On one hand he has all the instincts of a Chicago machine politician. On the other hand he has all the fantasies of a good college faculty member.”

And the media was mixed in as well – an institution Gingrich claims is Obama’s “enabler.”

“The elite news media gets up every morning thinking how do we protect this guy because he’s so wonderful that even if he’s totally destructive he’s destructive in such a fun way that we really like keeping here there, and how do we protect him from himself, because after all it’s not his fault that he’s crippling the economy, bankrupting the nation, and doing a series of weird things, because we know he really means well,” he said.

Gingrich will continue to campaigning heavily in both Delaware, where voters take to the polls on April 24, and North Carolina, votes on May 8, because he believes wins there may get him back in the game – keeping alive the dream of debating Obama one-on-one this fall.

NEWARK, Del. -- Republican presidential candidate Newt Gingrich blamed a bounced campaign check on confusion over campaign accounts, and not any lack of finances associated with his indebted campaign.

The former House speaker, who’s fighting to remain a viable challenger to Mitt Romney in the Republican primary, laughed off a $500 bounced check cut by his campaign that was intended to help him pay to qualify for the Utah primary.

“This is one of those goofy things,” Gingrich told reporters following a speech at a senior citizen center here. “That check was drawn in December. The account actually was closed by the time they processed it. It wasn’t a question of money. That particular bank account was closed.”

The Salt Lake City Tribune reported Tuesday the Utah Elections Director Mark Thomas said Gingrich’s check to get on the ballot bounced and if it was not paid by April 20, the former speaker would be disqualified and not be on the ballot.

Asked if his campaign will fix the issue, Gingrich simply said, "they apparently have it all worked out.” Gingrich campaign spokesman, R.C. Hammond, told NBC News via email: "A new check has been sent. We are confident the state of Utah will list Newt on the ballot for their upcoming GOP primary."

Gingrich is struggling to stay afloat financially. He noted Tuesday afternoon in North Carolina that his campaign will post just under $4.5 million in debt this month, citing excessive spending as his “management team got very excited in Florida.”

But, despite financial problems, Gingrich says he will still take his campaign forward. He believes the race is “not over 'til it’s over" because no one has the required 1,144 delegates to capture the nomination.

“We had 3,500 people send money to Newt.org online after 2 o’clock yesterday saying please stay in,” he said, detailing a spike in donations after Rick Santorum withdrew from the GOP race.

Santorum and Gingrich -- who have publicly acknowledged being friends and talking regularly -- still have not spoken since the former Pennsylvania senator’s departure from the race.

“We’ve been swapping voicemails," Gingrich said. "I hope to get to him after I’m done with you."

Gingrich will hold two more public events in Delaware Wednesday.