Donald Trump's presidential campaign has suffered arguably its biggest blow to date after the release of a tape in which he effectively bragged about committing sexual assault.

But that's not the only alarming thing for the Trump campaign, which now looks set to go from bad to worse.

Rumours are now circulating online that producers from Trump's reality TV show The Apprentice are sitting on footage where he uses the racial slur commonly referred to as the N-word.

The damning claim comes on top of the emergence of an 1993 interview in New Zealand where Trump admits he shouldn't be allowed to run for office because of his views on women.


Emmy Award-winning producer Chris Nee made the N-word claim this morning on Twitter in response to a former producer on the show tweeting that Trump had been caught on camera saying "far worse" than the misogynistic comments he made on Access Hollywood.

The footage, which was filmed in 2005, included Trump boasting about how his celebrity status allows him to grope women with impunity.

Remarkably, Trump's uncouthness has been a weapon for him in his bid for the White House but it seems the archived comments were finally too much for some, leading to a string of Republicans withdrawing their support for the party's nomination.

However, it's clear that footage is not the only video that Republicans should be alarmed about.

Nee, who specialises in making TV shows for children, said she heard from crew and producers on The Apprentice that the "far worse" reference was eluding to his use of the notorious racial slur.

Some fear the use of the N-word could prove to be the fatal blow for his campaign.

Trump has made incredibly disparaging remarks against Mexicans, called for a ban on Muslim immigration to the US and been tied to the Ku Klux Klan.

Executive producer on Trump's reality TV show, Mark Burnett, has reportedly warned staff against leaking any material from the show to the media, and according to Nee the financial penalty for doing so would be huge.

She claimed (from personal experience) that a common feature of Mark Burnett's contracts is a $US5 million penalty for leaking to the public.

Interestingly she tweeted the N-word allegation to billionaire entrepreneur Mark Cuban, whose show Shark Tank is also produced by Burnett.

Some online interpreted it as a suggestion that the wealthy businessman could cover the cost of the fine for leaking the video.

Such an event would seem unlikely but Cuban pulled no punches in the wake of the Trump tape scandal, taking to Twitter to denounce the real estate mogul and his staff.

"Donald Trump's actions have made any Trump (employee) who doesn't quit immediately, toxic and unemployable by anyone else," he wrote. "Expect a mass exodus."

And if this rumoured tape does emerge, Trump's support might also suffer a mass exodus.

Trump: 'It's fortunate I don't have to run for political office'

Donald Trump is also being haunted by comments he made 23 years ago, where he admits his views on women should exclude him from running for office.

In the interview with TV3 News, now Newshub, Trump is asked how he felt about his image as a womanising tycoon.

In the interview, Trump admitted he indeed found women beautiful but it's what he said after that is sure to raise a few eyebrows.

"I think women are beautiful - I think certain women are more beautiful than others, to be perfectly honest - and it's fortunate I don't have to run for political office."

The footage was uncovered after Newshub political editor Patrick Gower trawled through archives.

Gower said Trump's comments had clear repercussions.

"Donald Trump declared his sexist views on women would disqualify him from political office," he said.

"Trump's comment now stands out as a blunt assessment of himself, with the continual exposure of his aggressive sexist attitude and actions now derailing his presidential campaign."

The emergence of the footage comes hours after the release of the 2005 clip of Trump making lewd comments about women.

"You know I'm automatically attracted to beautiful - I just start kissing them. It's like a magnet. Just kiss. I don't even wait," Trump can be heard saying on the tape.

"And when you're a star, they let you do it. You can do anything.

"Grab them by the p***y. You can do anything."

Billy Bush suspended indefinitely

NBC on Sunday (US time) suspended Today show personality Billy Bush indefinitely after he was caught on a videotape from 2005 in a crude conversation about women with Republican presidential candidate Donald Trump.

Today executive producer Noah Oppenheim said in a memo that "there is simply no excuse for Billy's language and behavior on that tape."

Bush, who hosts the third hour of the Today show, has been suspended "pending further review of the matter," Oppenheim said.

NBC announced its decision two days after the videotape from the Access Hollywood archives surfaced.

Bush was a host for that show in 2005, and he was taped in a hot-mic discussion with Trump when the future presidential nominee was on a Hollywood set to make an appearance on a soap opera.

On the tape, Trump brags about kissing, groping and trying to have sex with women who were not his wife. Bush joins in, laughing at some of Trump's comments and later encouraging an actress to hug Trump.

Bush, 44, has been brutalised on his own Facebook page since the tape surfaced.

Hundreds of hostile comments were attached to Bush's last posting Friday - of him distributing a plate of bacon to Today viewers outside of the show's studio.

"You are sickening!" one woman wrote, in a comment that nearly 5000 had "liked" through Sunday afternoon.

Angering women viewers of a show as important to NBC's bottom line as Today is no small matter. Many viewers upset by 2012's messy dumping of Ann Curry as Today host took it out on colleague Matt Lauer; the show's ratings still haven't recovered.

Women make up the majority of Today viewers, particularly in the last two hours.

Bush has only been at Today for two months, where he's had a rocky start. He was the reporter to whom American swimmer Ryan Lochte lied about being robbed at the Olympics. When Bush later tried to defend Lochte on Today, he was dressed down by colleague Al Roker.

The Access Hollywood tape was an embarrassment on multiple levels for NBC News.

The news division for days had been aware of the tape from the NBC-owned entertainment show, but was scooped by The Washington Post on Friday when the newspaper was tipped off about its existence and got a story out within hours.

Bush issued a statement Friday apologising for his actions.

The tape showed Bush and Trump speaking as the Republican was about to appear on the daytime drama Days of Our Lives. From the bus they had ridden to the set, Bush pointed out to Trump an actress, Arianne Zucker, who was there to greet them.

Bush called the actress "hot," adding an expletive.

"I've gotta use some Tic Tacs, just in case I start kissing her," Trump said. "You know, I'm automatically attracted to beautiful ... I just start kissing them. It's like a magnet. Just kiss. I don't even wait. And when you're a star, they let you do it. You can do anything."

"Grab them by the p----. You can do anything," Trump added.

After getting off the bus, Bush asks the actress to hug Trump, then adds, "How about a little hug for the Bushy?"

The married father of three is the nephew of former President George H.W. Bush.