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US election 2016: Clinton and Trump begin final debate US election 2016: Clinton and Trump begin final debate
(35 minutes later)
Hillary Clinton and Donald Trump have taken to the stage in Las Vegas for the final debate in an increasingly bitter race for the US presidency. Hillary Clinton and Donald Trump have clashed over abortion, gun rights and Russian President Vladimir Putin, in their final televised debate.
It began with Mrs Clinton vowing to uphold women's and LGBT rights, while Mr Trump pledged to protect gun rights.It began with Mrs Clinton vowing to uphold women's and LGBT rights, while Mr Trump pledged to protect gun rights.
He also said he expects a key ruling that made abortion legal in the US to be overturned if president.
Polls show Mr Trump is losing in key battleground states after facing a slew of sexual assault allegations.Polls show Mr Trump is losing in key battleground states after facing a slew of sexual assault allegations.
But Mrs Clinton remains unpopular with many US voters and has faced more questions about her trustworthiness.
Most Americans will cast their votes on 8 November.Most Americans will cast their votes on 8 November.
Millions were expected to tune into the third and final debate at the University of Nevada, Las Vegas, moderated by Fox News presenter Chris Wallace. Follow latest updates
The two candidates are to discuss six topics: national debt and health and social benefits, immigration, the economy, the Supreme Court, foreign flashpoints and their fitness to be president. Other highlights from the debate at the University of Nevada, Las Vegas, moderated by Fox News presenter Chris Wallace, include:
When asked about her paid speech to a Brazilian bank in which she spoke of her dream of open trade and open borders, Mrs Clinton said she was talking about energy policy.
Mr Trump has faced damaging fallout after a video emerged of him making obscene comments about groping women, with senior Republicans deserting him.Mr Trump has faced damaging fallout after a video emerged of him making obscene comments about groping women, with senior Republicans deserting him.
What to expect - Anthony Zurcher, BBC News, Las Vegas
So which Donald Trump is going to show up at the final US presidential debate?
Will it be the Republican nominee who has offered reform-oriented policy proposals like term-limits for members of Congress and more stringent regulation of government lobbyists? Or will it be the candidate who has predicted "large-scale voter fraud" on election day and continued to launch nasty personal attacks on his Democratic opponent?
Over the past week Mr Trump has offered hints of a campaign that could have been - one that capitalised on fatigue from eight years of Democratic rule and presented a can-do message of outsider-oriented change.
Instead, Mr Trump has spent the bulk of his campaign offering Americans dark warnings of rampant crime and economic ruin, punctuated by off-message rants that exacerbate the impact of personal scandals and gaffes.
Given Mr Trump's performance in the first two debates - and the fact his campaign has invited a motley assortment of debate guests, including a woman accusing Bill Clinton of sexual assault and President Barack Obama's estranged half-brother - chances are we'll see more of this blunderbuss approach.
That strategy hasn't worked for Mr Trump so far, however, and now time is running very short.
You can follow @awzurcher on Twitter
In recent days he has railed against the election process itself, warning the vote is "absolutely rigged" with "large-scale voter fraud" taking place.In recent days he has railed against the election process itself, warning the vote is "absolutely rigged" with "large-scale voter fraud" taking place.
His remarks prompted a scathing response from President Barack Obama, who said the Republican challenger should "stop whining".His remarks prompted a scathing response from President Barack Obama, who said the Republican challenger should "stop whining".
Mr Trump has invited President Obama's estranged half-brother, Malik Obama - one of his supporters - as a guest.Mr Trump has invited President Obama's estranged half-brother, Malik Obama - one of his supporters - as a guest.
He also invited Patricia Smith, whose son was killed in an attack on the US diplomatic mission in Benghazi, Libya, in 2012, while Mrs Clinton was US secretary of state.He also invited Patricia Smith, whose son was killed in an attack on the US diplomatic mission in Benghazi, Libya, in 2012, while Mrs Clinton was US secretary of state.
In contrast to Mr Trump, Mrs Clinton has kept a low profile ahead of the debate to prepare for the showdown.
Her spokesman said the Democratic nominee was ready for whatever "scorched-earth" tactics her rival might try.
Mrs Clinton is likely to face questions about a batch of hacked emails from the account of her campaign boss, released by WikiLeaks, that her rival has seized on.
Polls suggest Mrs Clinton is ahead nationally and in key battleground states.Polls suggest Mrs Clinton is ahead nationally and in key battleground states.