With 97 per cent of the vote counted, Trump had a resounding 45.8 per cent share, ahead of Marco Rubio on 23.7 per cent and Ted Cruz on 21.4 per cent.
Such a convincing majority is a huge boost for Trump, who is looking increasingly unstoppable in the race to secure the Republican presidential nomination.
The triumphant tycoon addressed a victory rally on Tuesday night with his sons Donald Jr and Eric by his side.
In reference to his promising poll numbers in the numerous primaries approaching over the next two weeks, he told a cheering crowd: ‘We weren’t expected to win this one, we weren’t expected to win too much at all – and now we’re winning the whole country.’
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Trump (center, flanked by sons Donald Junior and Eric) delivers his victory speech live on CNN after he secures the Nevada caucuses with a huge majority
Victorious: Such a large majority is a huge boost for Trump, who is looking increasingly unstoppable in the race to secure the Republican presidential nomination
A family affair: In his victory speech, Trump thanked his family for their support – he gave a special shout to Eric (right) and his ‘elegant speeches’
‘We weren’t expected to win this one, we weren’t expected to win too much at all – and now we’re winning the whole country,’ Trump roared
Trump has dominated: Supporters celebrate as television networks declare him the winner of the Nevada Republican caucuses
The latest national poll puts him 17 points ahead of Ted Cruz, and The Donald promised: ‘And soon the country will start winning, winning, winning.’
‘Some great numbers – It’s going to be an amazing two months. We might not even need the two months.’
He added: ‘When people drop out, we get a lot of votes’, referencing how the Republican candidates have dwindled down to five and also boasted about how he is ahead of Ohio governor John Kasich in polling for that state’s primary on March 15.
‘And we’ve had some great numbers coming out of Texas, and amazing numbers coming out of Tennessee and Georgia and Arkansas and then in a couple of weeks later Florida.
‘We’re going to do very well in Ohio. We’re beating the governor. It’s always nice to be beating the governor’.
Trump continued: ‘I grab, I am greedy, I want money. But now I’m going to be greedy for the US, I’m going to grab and grab for the U.S. and make America great again.’
He also noted how he is managing to clinch a wide demographic of voters: ‘Evangelicals, the young, the old, the highly educated, the poorly educated.’
Then he added: ‘I love the poorly-educated.’
‘And I got 46 per cent of the Hispanic voters – I’m really happy about that.’
Trump also made reference to his well-worn refrain about ‘building a wall around Mexico’s border.’
He has campaigned on a hard-line immigration platform throughout and got into some trouble with the Pope earlier this week as the Roman Catholic religious leader suggested his views were ‘not Christian’.
Say cheese: The republican presidential candidate takes a selfie earlier in the night with a supporter at a Las Vegas caucus site
A long wait: Ballot shortages had been reported across a number of sites as turn out far exceeded what was predicted. Voters described the scenes as ‘overwhelming’ and ‘very disorganized’
As he secures the state, it makes it his third consecutive win following his victories in the New Hampshire and South Carolina primaries.
Political commentators note that the win reflects how Trump is managing to clinch every demographic of voter, including perhaps the Hispanic population, who are more dominant in Nevada than in Iowa and New Hampshire.
Speaking after the caucuses, Ted Cruz spoke of the narrow defeat seen so far, and added: ‘History teaches us that nobody has ever won the nomination without winning the at least one of the first three primaries – and there are only two people who have done this.
‘Donald Trump and us.
‘The only campaign that can beat Donald Trump is this one. And anyone – the other 65 per cent – who doesn’t think Donald is best candidate to go head to head with Hillary should vote for us.’
The result comes after an unexpectedly high turn out caused voting chaos across the state, as reports came in of ballot shortages and identifications going unchecked.
Thumbs up: Trump looks confident on the night of voting as he mingles with voters at Palo Verde High School in Las Vegas
Adoring fan: Trump signs the hand of a female supporter on the night the caucus
Jeremy Hughes, a Nevada strategist for Marco Rubio, told CNN that at his site, many volunteers had failed to check voters IDs, while individuals were reported to be casting multiple ballots.
While Nevada reporter Karen Castro tweeted that one site had ran out of ballots, left would-be caucus-goers waiting for a resupply.
Ballot shortages had been reported across a number of sites as turn out far exceeds what was predicted.
Voters at Valley High School in Las Vegas described the scenes as ‘overwhelming’ and ‘very disorganized’.
Responding to the claims of bad practice, a GOP official told Jon Ralston: ‘We take reports of double voting very seriously. There is a master sign sheet and that we will be checking very closely as well.’
Nevada, has a history of poor turn-outs to caucus and back in 2012 only 7 per cent of the state’s 33,000 population went to ballot – but this didn’t seem to be a problem this evening.
The state is the fourth to caucus so far and the GOP field has since dwindled down to five candidates as Jeb Bush had his campaign suspended over the weekend after weak support.
The candidates balloted were winner Donald Trump, followed by senators Marco Rubio of Florida and Ted Cruz of Texas.
Ohio Governor John Kasich and retired neurosurgeon Ben Carson trailed behind.
Real-estate mogul Trump told supporters in Sparks, Nevada, during a pre-vote rally on election day: ‘You have to get out! You have to go caucus!’
Runner-up Ted Cruz. pictured here at a post-vote rally – spoke of the narrow defeat seen so far, and added: ‘History teaches us that nobody has ever won the nomination without winning the first three primaries – and there are only two people who have done this’
He’s got the young vote: A Trump fan poses for a photo following a rally at the Nugget earlier today – even though the boy will be too young to cast his vote tonight
Let the voting begin: People stand in line waiting for the doors to open for the Nevada Republican presidential caucus at Western High School in Las Vegas
With that in mind, organisation from the representatives has been key, with campaigns and parties holding training sessions so voters wouldn’t be intimidated by the process.
Ivanka Trump even released a ‘how to caucus’ video to Nevada Republicans to explain how the process was ‘super quick’ and ‘super easy’.
Republican Nevada caucuses are neighborhood meetings where voters come together to discuss candidates.
There are more than 130 locations across the 17 counties around the state.
A caucus chair and secretary is elected for each candidate and they then stand up and briefly explain why their candidate should gain the vote.
Residents then cast in a secret ballot.
Nevada voting takes place in schools, community centers and places of worship across the state. Unlike a primary, which involves quick and solitary voting, caucuses involve a more public pronouncement of presidential preference including speeches to try to persuade undecided neighbors.
It is the first state that will indicate the candidates’ standing among a more racially diverse electorate, with a high number of Hispanic voters.
This is compared to the mostly white states of Iowa and New Hampshire.
Republican presidential candidate Marco Rubio aimed to outpoll rival Ted Cruz in Nevada’s caucus on to bolster his position as the establishment favorite for his party’s nomination for the November 8 election.
Looming over the tight race between the two first-term Cuban-American U.S. senators is Republican front-runner Donald Trump, the billionaire businessman who has won two of the first three state nominating contests and is expected to dominate the field in Nevada.
There are more than 130 locations across the 17 counties across Nevada – here people stand in line waiting for doors to open at Western High School in Las Vegas
Popular: A Rubio supporter manages to get a selfie with the presidential hopeful as he campaigns in Michigan on the night of the Nevada caucus
All smiles: Marco Rubio gives a thumbs up at a rally held tonight as he campaigned for victory
With Trump, a blunt-spoken political outsider, commanding a double-digit lead in a handful of Nevada opinion polls, political strategists in the state said Rubio and Cruz had a more modest goal: a clear win over the other, which could propel them through the busy voting month of March.
‘They’re playing for second,’ said Nevada political analyst Jon Ralston.
Lagging behind were retired neurosurgeon Ben Carson, who on Tuesday stoked controversy by suggesting that President Barack Obama, the first African-American U.S. president, was ‘raised white,’ and Ohio Governor John Kasich. Carson was at 7 percent and Kasich was at 5 percent.
Kasich, who finished second to Trump in the February 9 New Hampshire primary, kept his focus on bigger states, including Michigan and Virginia.
Rubio left the state before voting began, preferring to campaign in Minnesota and Michigan instead.
He lived here as a boy, from grades 3 through 8, and Nevada-based family members and friends poured into his Las Vegas-area rallies in recent days as he shared stories about his formative years.
After finishes of third in Iowa, fifth in New Hampshire and second in South Carolina, Rubio needs a win soon to support his theory that he is the primary beneficiary of Bush’s departure.
Indeed, Republican establishment heavyweights have been flooding to Rubio in recent days, including Arkansas Gov. Asa Hutchinson, North Carolina Sen. Thom Tillis and Utah Sen. Orrin Hatch. South Florida’s three Cuban-American members of Congress announced their support for him in the hours before the Nevada contest.
Lagging behind was retired neurosurgeon Ben Carson, who on Tuesday stoked controversy by suggesting that President Barack Obama, the first African-American U.S. president, was ‘raised white’
Cruzing for victory: Ted Cruz posed for a selfie with a supporter, before his defeat to The Donald
‘We have incredible room to grow,’ Rubio told reporters during a Monday night news conference on his campaign plane.
After accusing Cruz of leading a campaign culture of ‘lies,’ the Florida senator asserted that Trump’s support is capped at roughly one-third of the Republican electorate.
‘That means 65 percent of the party is against him,’ Rubio said. ‘The problem is that 65 percent has been divided up among a lot of people. As long as that continues, he’ll succeed. But once it consolidates against an alternative he’ll lose.’
Rubio has picked up endorsements from several Nevada party leaders, including U.S. Senator Dean Heller and Nevada Lieutenant Governor Mark Hutchison.
His campaign staff was due to be joined by Marc Short, a senior political adviser to the billionaire industrialist brothers Charles and David Koch, Politico reported on Tuesday.
The influential brothers, who have not endorsed any candidates, spend tens of millions to advance their libertarian brand of politics, which would sharply limit the role of government.
Tuesday night, the Florida senator spoke during a rally at a western Michigan auto supplier, two weeks before the state’s primary.
He says he can unify Republicans before the November election and appeal to Democrats who ‘never’ vote for GOP candidates.
John Kasich, who finished second to Trump in the February 9 New Hampshire primary, has kept his focus on bigger states, including Michigan and Virginia
The Cruz campaign, meanwhile, lost a key staffer on Monday when the candidate fired his main spokesman, Rick Tyler, for posting a video that falsely showed Rubio dismissing the Bible.
Complicating the already bumpy path to victory for Cruz, lingering questions over the Texan’s birthplace continue to dog his campaign. He was born in Canada, in the western city of Calgary, to a Cuban father and U.S. citizen mother.
Trump, known to verbally savage rivals, including fueling questions over Cruz’s birthplace eligibility, appeared to continue to focus his venom on Cruz.
Speaking Tuesday, Cruz said he’s facing the same sort of opposition from the Washington establishment that tried to take Ronald Reagan out before he unseated Jimmy Carter.
Ralston estimated only 8 percent to 10 percent of eligible voters may turn up to caucus on Tuesday – or somewhere between 33,000 and 42,000 people, according to data from the Nevada secretary of state on registered Republican voters.
Representing: Republican presidential candidate Donald Trump exits The Trump Store inside the Trump Hotel as voters caucus in Las Vegas, Nevada