Top Trumps: Presidential hopeful's 10 biggest gaffes

US Presidential hopeful Donald Trump has caused global outrage by calling for a ban on Muslims entering the USA and for claiming that parts of London are so radicalised, "police are afraid for their own lives".

But the billionaire businessman is no stranger to courting outrage over his comments. Here are top 10 of the most outrageous Trump quotes.

  • Trump on Barack Obama

Some years before launching his campaign for Republican nomination for presidency, Trump had Barack Obama in his crosshairs.

In 2011, he tweeted that he had an "extremely credible source" that said his birth certificate is a fraud and later said that he had sent private investigators to Hawaii to see what they could find.

After the president released the long-form version of his birth certificate, Trump said he was "proud of myself because I've accomplished something nobody has been able to accomplish."

Obama later joked on Jay Leno's Tonight Show that Trump's grudge with him goes way, way back - to their childhood days in Kenya.

  • Trump on Mexico

Trump garnered attention early on in his campaign for nomination for presidential candidacy for the Republican party by suggesting that he would build a "great wall" of the USA, which the Mexicans will pay for.

  • Trump on Mexicans

As he announced his presidential run in June, Trump caused outrage by making inflammatory remarks suggesting Mexican immigrants 'criminals' and 'rapists'. His comment cost him to lose business deals with five companies and his association with broadcasters NBC was cancelled.

  • Trump on his own daughter

Perhaps the most uncomfortable Trump gaffe of them all was when he commented on his daughter Ivanka on the television chat show The View in 2006.

"She does have a very nice figure," he said. "If [she] weren't my daughter, perhaps, I'd be dating her."

  • Trump on Hillary Clinton

Barack Obama isn't the only Democrat Trump has taken pot-shots at. He has saved some of his most outrageous comments for his rival Hillary Clinton.

A comment made by another user referencing the Monica Lewinsky and Bill Clinton affair scandal in 1998 was retweeted by Trump's account. It was deleted three hours later with Trump claiming it was an unidentified member of his team that made the mistake.

But the mistake has not dissuaded him from taking aim at his rival branded her as being "pathetic" and playing the "woman card" and bizarrely not being "rich enough to be incorruptible".

  • Trump on women

Trump's various comments about women led Fox News' Megyn Kelly to confront him about his sexist behaviour during the GOP on August 6. She said: "You have called women you don’t like 'fat pigs', 'dogs', 'slobs', and 'disgusting animals'."

"Only Rosie O'Donnell," he quipped.

  • Trump on global warming

Trump has long insisted that he is not a "believer in climate change" describing extreme changes in the environment as simply "weather". He has even called it a Chinese conspiracy and said, on a particularly cold day, that "we could use a big fat dose of global warming!"

  • Trump on race

When asked about whether he had a good relationship with African Americans, Trump said: "I have a great relationship with the blacks. I've always had a great relationship with the blacks."

But in a tell-all book by former Trump Plaza Hotel and Casino president John R Donne, he is said to have said to an accountant: "Laziness is a trait in the blacks... Black guys counting my money, I hate it."

And following the Baltimore demonstrations following the death of Freddie Gray, Trump suggested that having an African American President has not had a "positive impact" on "thugs who are so happily and openly destroying Baltimore".

  • Trump on disability

Trump apparently does an impression of a disabled reporter. Credit: YouTube

During a campaign speech last month, Trump caused outrage by apparently mocking New York Times reporter Serge Kovaleski's disability.

Doing an impression that saw him flail his arms and put on a strange voice, he said: "ou gotta see this guy: 'Uh, I don’t know what I said. I don’t remember.'"

Kovaleski was born with arthrogryposis which causes a person's joints to get stuck in one position and weakened or missing muscles.

  • Trump on being politically correct