20/10/2016 12:01 PM AEDT | Updated 20/10/2016 12:16 PM AEDT

Is The Last Debate Trump's Last Chance?

AFP/Getty Images
Republican nominee Donald Trump speaks during the final presidential debate at the Thomas & Mack Center on the campus of the University of Las Vegas in Las Vegas, Nevada on October 19, 2016. / AFP / Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

Republican presidential nominee Donald Trump and Democrat Hillary Clinton go head to head on Wednesday night in a third and final debate as Trump tries to reverse momentum in an election that polls show is tilting away from him.

Trump has been damaged recently by several accusations of groping women - which he denies - and concerns about his claims that the election will be rigged against him.

The debate at the University of Las Vegas Nevada gives the New York businessman perhaps his best remaining chance to sway the dwindling number of Americans who are still undecided about which way to vote in the Nov. 8 election.

Tens of millions of voters are expected to tune in.