'Jeb doesn't really believe I'm unhinged,' Trump said. 'He said that because his campaign has failed, and nobody cares.' The two talked over each other constantly as The Donald mugged and grimaced.

'He was 2,000 percent more presidential than anybody else tonight,' one woman said of Christie, the governor of New Jersey. Cruz scored points for his tough talk on terrorism.

Donald Trump doesn't like having to be mean to Jeb Bush. 'I don't like doing it, I don't like saying bad things about him,' Trump told Bill O'Reilly in an interview that will be airing tonight.

The GOP presidential candidate known for his stinging take downs of his opponents and critics told O'Reilly 'people go after me' and insisted that he doesn't like having to be mean to be mean.

Bush's brag flies in the face of his own changing position on the issue since 2012, when he said he supported a pathway to citizenship for illegal immigrants, and now.

Jeb Bush likes running for president from behind. Talking to John Dickerson yesterday on Face the Nation, the former frontrunner said he didn't care much for the honor that Trump currently holds.

Three more GOP candidates are likely to be downgraded from prime time to meal time at the next debate, including Rand Paul. The senator says he won't debate at all if it comes to that.

Bush had challenged Trump to a one-on-one debate. The Donald responded by sharing the image with 5.4 million Twitter followers – depicting Jeb with his finger up one nostril.

'I'm looking to win everything,' Trump told a capacity crowd of thousands in a South Carolina hotel ballroom, saying that his tussles with Hillary Clinton and Jeb Bush are part of a 'war.'

Jeb Bush has his own countdown to contribute to conclude the year. The Bush campaign put out a new video blasting the 'chaos candidate' Donald Trump, pointing out his more clueless moments.

When Donald Trump's campaign rolled out a list of his New Hampshire town chairs last week the roster was supposed to show the 'incredible grassroots support' he was receiving in the state.

Trump has begun 2016 right where last year ended by tweeting his 5.5million followers attacking political rivals Bill and Hillary Clinton, alongside fellow Republican Jeb Bush.

Jeb Bush's campaign staff was forced to retract a mistake by the former governor on Monday, saying Bush never received a 'statesman of the year' award from the National Rifle Association.

At a campaign event in New Hampshire on Wednesday, Jeb Bush gifted a 13-year-old boy named Zacharie a tiny turtle, which he apparently keeps in his pocket for such occasions.

The four Republicans are locked in a tight battle to become establishment wing's standard bearer, and they're crowding each other out, which gives Trump the space to pull far ahead.

Republican presidential front-runner Donald Trump's relentless recent attacks on Ted Cruz, his closest rival for the primary nomination, appear to be paying off in the Hawkeye State.

Orlando attorney Fred Leonhardt, 65, died on October 10, of intoxication of ethyl chloride, a chemical developed for industrial and medical uses but is known as a frequent inhalant.

Saturday Night Live kicked off with a skit mocking Thursday night's Republican debate, poking fun at all seven candidates' performances from earlier this week.

Jimmy Kimmel parodied Trump's Freedom Kids, with a less-than-rousing performance by a trio of girls (with Vanessa Hudgens) who sang of Bush's sad showing at the polls.

The Donald took questions from reporters at a Las Vegas casino before taking the stage at the Outdoor Sportsman Awards. Earlier in the day he said Jeb's campaign 'is in the toilet.'

While Ted Cruz has been the main target on Donald Trump's radar in recent days, today Trump took some time to rib an old favorite: Jeb Bush. 'He should go home and relax!' Trump suggested.

'Cruz is going down. He's like a nervous wreck. He's going down,' The Donald said during a Las Vegas rally. He also hammered a CNN analyst who said if Trump didn't win Iowa by 10, it would be a loss.

Ted Cruz blasted out a 'Monty Python's Holy Grail' clip showing 'Brave Sir Robin' chickening out ,while Rand Paul snarked that 'the IQ of the debate went up a couple dozen points.'

Republican presidential candidate Jeb Bush on Tuesday appeared to question GOP front-runner Donald Trump's Christian faith, although his campaign later backpedaled

The last desperate search for voters to back their causes was under way in Iowa - with the man trolled by Donald Trump as 'low-energy' apparently offering $25 an hour to come to his final campaign rally.

After a second-place finish in the Iowa caucuses, Donald Trump is poised to bounce back with a crushing victory in the New Hampshire primary.

'I'd go through a process and get it declassified [as torture], frankly ... certainly waterboarding at a minimum,' the Republican presidential front-runner said.

The Republican National Committee, Trump alleged, 'told us we have all donors in the audience. And the reason they're not loving me is I don't want their money.'

We cannot afford to lose to Hillary Clinton. You need someone who is tough enough, tested enough, mature enough and ready enough, the New Jersey governor said of Rubio's soundbite campaign.

'Here's the story on Jeb,' Trump said of the former Florida governor on MSNBC's 'Morning Joe' program. 'He's a stiff who you wouldn't hire in private enterprise, okay? This is a stiff.'

Donald Trump doesn't need much of a push to dole out colorful adjectives about his rivals so he happily played a game of word association this morning on Morning Joe.

Donald Trump is at an all-time high in Republican support following his victory in the New Hampshire primary. The second-place finisher John Kasich is 40 points behind him in a new poll.

Donald Trump turned on the former Florida governor during Saturday night's Republican presidential debate in Greenville, South Carolina, attacking his brother George W Bush,

The Trump clan were pictured front and center during tonight's Republican debate in Greenville South Carolina lending their support as he took on his Republican rivals.

While some suggested that last night's messy GOP debate was a win for the Democrats, Donald Trump said he knew who the real winner was – and it was him. Trump called it his 'best performance.'

The figures released on Sunday signal a steady climb in interest in the Republican field's stand-offs - though still short of the 15 million who tuned in to the Las Vegas debate in early December.

Kate McKinnon took on Clinton impersonating duties to sing Bonnie Raitt's I Can't Make You Love Me as a group of friends considered switching their allegiance to Bernie Sanders.

The six-way shouting fest saw Donald Trump tell Jeb Bush his brother, former president George W Bush, was responsible for 9/11 and had Ted Cruz yelling at Marco Rubio in Spanish.

Former President George W. Bush lent his brother's campaign a jolt of energy at a rally tonight in North Charleston, South Carolina, using humor to punctuate his pitch for Jeb Bush.

Jeb Bush again threw out a theory as to why he's become Donald Trump's favorite punching bag of the Republican field. 'It's because he fears me,' Bush said on CBS This Morning.

Jeb Bush has been struggling with internet pranksters today, with a botched Tweet and a website squatter frustrating his attempts to woo South Carolina voters during a key part of his campaign.

Just one day after Sen. Ted Cruz christened himself the 'new national front runner,' two new polls show that it's Donald Trump who remains the commanding leader of the Republican field.

The Republican race is down to five candidates as Bush bails and The Donald stays firmly on top with two wins under his belt.

In his first interviews since his big South Carolina win, Donald Trump was asked if he thought the nomination was in sight. 'Certainly no one's unstoppable,' Trump said.

Watch Marco Rubio as a robot, Hillary Clinton become an assassin for Goldman-Sachs and Donald Trump be a tricky fighter in 'The Debateful Eight,' a short animated Simpsons skit.

The failed Republican presidential candidate spent the extraordinary sum between his campaign and his Right to Rise super PAC. Other candidates are spending big too - but not Trump.

Donald Trump keeps weaponizing his massive Twitter following against Ted Cruz, his only remaining serious rival for the Republican presidential nomination.

Jeb Bush says he won't vote for Donald Trump in November. 'Donald Trump has not demonstrated that temperament or strength of character,' Bush wrote.

Donald Trump also insisted in Friday that he's still 'self-funding' his presidential campaign even as he prepares to raise cash from big donors and the public for a final November push against Hillary Clinton.

Donald Trump brought back up the Republican Party's loyalty pledge in the wake of at least two former rivals saying they don't plan to support him – Jeb Bush and Lindsey Graham.