Donald Trump

ABC, CBS and NBC have devoted 504 minutes to campaign news on their evening newscasts through last Friday, according to an analysis by the Tyndall Report, which studies the content of these programs. The previous high of 462 minutes at this point came in 2007, another year when no incumbent was running. Tyndall made no such measurements prior to the 1992 campaign.

Republican presidential frontrunner Donald Trump has said he was not morally obligated to defend US President Barack Obama after he let pass unchallenged a questioner's assertion that the US leader is a Muslim.

In a rapid-fire series of tweets on Saturday, the billionaire real estate mogul responded to a barrage of criticism of his handling of the incident, which came from Democrats and one fellow Republican candidate, New Jersey Governor Chris Christie.

"He knew, or he should have known, that what that man was asking was not only way out of bounds, it was untrue," Hillary Rodham Clinton, the Democratic front-runner, said after a campaign event in New Hampshire. "He should have from the beginning repudiated that kind of rhetoric, that level of hatefulness."

The question to Trump came Thursday night at a town hall in Rochester, New Hampshire. The first person the billionaire real estate mogul called on said, "We have a problem in this country. It's called Muslims."

In polls in national and early-voting states, Carson is second only to Trump. He recently cast doubt on the real estate mogul's religious faith, questioning his "fear of the Lord," then backed off the comment and would not repeat it.

"You don't hit a person on faith," Trump told hundreds of people at a rally in Boone.

On one side stands billionaire businessman Donald Trump and his allies, on the other are those who oppose him.

A day after Rick Perry, Texas' longest-serving governor, ended his second Republican presidential run with a whimper, Trump marked the shake-up by embracing his role as his party's 2016 bully on Saturday.

"I do like to buy bad contracts," the billionaire real estate mogul said Friday on MSNBC's "Morning Joe" program, explaining why he believes he is qualified to renegotiate the deal, which involved not only representatives of the U.S. but also of Germany, Britain, France, Russia and China.

Trump repeated his charge that the deal was "negotiated by totally incompetent people."

On Sunday night, Yeezus made waves when he announced at the end of his 13-minute speech while accepting the prestigious Video Vanguard Award that he is running for president in 2020.

So, naturally, Rolling Stone asked Donald Trump about the much-buzzed about moment during a sit-down with the real estate mogul at Trump Tower on Tuesday.

"He's said very nice things about me in the past... extremely positive things," the 69-year-old presidential hopeful and quote machine told the publication.

The billionaire businessman announced his decision in a raucous news conference at Trump Tower, the gold-hued skyscraper in midtown Manhattan where he launched his surging and front-running campaign for president.

"I have signed the pledge," Trump said, adding that he intends to win the nomination himself and face whoever the Democrats nominate.

It's a risky strategy for the former Florida governor, still considered the GOP front-runner by many party officials, but a move his advisers suggest is necessary to reverse Trump's unlikely ascension to the top of the 2016 presidential class.

In a new interview with The New York Times, Cyrus candidly says that she didn't familiarize herself too much with the whole Swift-Minaj debacle because Nicki's approach was one of "anger."