Donald Trump will accept US presidential 2016 election results when he wins

US Republican presidential nominee Donald Trump says only if he wins the November election he will accept the results of the vote.

“Ladies and gentlemen, I would like to make a major announcement today,” the Republican nominee told his supporters in Delaware, Ohio, on Thursday.

                                    Donald Trump

“I would like to promise and pledge to all my voters and supporters, and all of the people of the United States, that I will totally accept the results of this great and historic presidential election — if I win,” he added.

Trump said he will have the right to challenge the outcome if he feels it is “questionable”.

"I would accept a clear election result but I would also reserve my right to contest or file a legal challenge in the case of a questionable result," he stated.

Trump added, “Bottom line: We’re going to win. We’re going to win. We’re going to win so big. We’re going to win so big.”

During the final presidential debate with Democratic candidate Hillary Clinton on Wednesday night, Trump declared that he might not accept the results of the November 8 presidential election if there is evidence it was rigged.

With the election less than three weeks away, Trump insists that Clinton's campaign team and the media are trying to rig the vote against him.

“"The media is so dishonest and so corrupt and the pile-on is so amazing, The New York Times wrote an article about it. They don’t even care, it's so dishonest, they’ve poisoned the minds of the voters, but unfortunately for them, I think the voters are seeing through it,” he said during the on Wednesday night debate.

The US media has launched an offensive against Trump in recent days, running reports of several women claiming the billionaire businessman has groped and forcibly kissed them.

Trump has called the allegations “slander and libel” and part of a “concerted, coordinated and vicious attack” launched by Clinton and the news media to destroy his campaign.

According to a new national Quinnipiac University poll released on Wednesday evening, a majority of likely American voters believe mainstream media organizations are biased against Trump.

Almost 90 percent of Republican voters think that news media is biased against Trump, while 3 in 4 Democrats disagree with that opinion, the poll showed.