Trump launched a blistering assault on Clinton, pummelling her on her husband's sex scandals and saying she ought to be in jail for her private email server
Clinton hit back, saying Trump's remarks about groping women show he isn't fit to be president
Shortly before the debate in St Louis, Missouri, Trump stunned media by hosting a panel with women who have accused Bill Clinton of sexual assault
That's the end of our live coverage of the second presidential debate. We leave you with the best moments from this astoundingly acrimonious encounter.
You can continue to follow all our presidential election coverage here.
Until next time...
Trump v Clinton: Sex, lies and videotape
Republican vice-presidential candidate Mike Pence has cancelled a fundraising event in Ocean County, New Jersey, that was supposed to be held on Monday, according to US media.
Trump said in tonight's debate that he disagreed with a comment made about Russia by his running mate during the VP debate last week.
Pence on Saturday condemned the video of Trump making sexist remarks about women, saying "I do not condone his remarks and cannot defend them".
Scores of Republicans have deserted Trump after those remarks came to light.
But Pence did tweet-congratulate his boss following the debate saying: "Proud to stand with you as we Make America Great Again."
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The expressions of voters who viewed the debate at watch parties across the US say it all.
Trump supporter Ken Wilkison cheers as he watches at a bar in Denver, Colorado:
Image source, AFP
Image source, AFPClinton supporters watch the debate at a Chinese restaurant near the US-Mexico border in Calexico, California:
Image source, APTrump supporter Debra Earnes reacts to an exchange while watching the debate at a Republican party office in Thornton, Colorado:
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Ken Bone, who asked a technical question about energy policy, has found fame on Twitter.
His question was: "What steps will your energy policy take to meet our energy needs, while at the same time remaining environmentally friendly and minimizing job loss for fossil power plant workers?"
Good work, internet!
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Kellyanne Conway, Trump's campaign manager, appeared to slip up while talking to MSNBC's Chris Matthews.
Matthews asked: "So you’re with the campaign till the bitter end?"
"I’m with the campaign till the bitter end,” Conway responded. "Unless…"
After a dramatic pause, she appeared to recover.
"Who knows? But I'm sitting here as his campaign manager, I'm sitting here with you in the debate hall where he just performed beautifully."
“So you’re worried about more shoes dropping,” Matthews pressed.
“No, I didn’t say that," she said.
'"I’ve made a commitment”, she continued before declaring Trump won the debate.
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The Khan family, who were the subject of repeated attacks by Trump after they spoke out against him during the Democratic convention, have reacted to the Republican nominee's comment tonight calling their son a hero. Captain Khan was killed in Iraq by a suicide bomber in 2004.
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Muslim social media users are mocking Donald Trump, who said that they should "report when they see something going on".
The hashtag lit up on social media.
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Twitter said this was the most retweeted tweet of the night:
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Republican National Committee Chairman Reince Priebus has called for a conference call on Monday, Politico reports.
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According to Twitter, tonight's #debate was the most tweeted ever, with more than 17 million debate-related tweets posted.
Today was also the most tweeted day of the entire 2016 election season, with nearly 30 million tweets sent.
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Clinton's foreign policy spokesman tweeted a graphic insult at Donald Trump during the debate tonight.
He soon apologised.
Image source, Twitter
Image source, Twitter
Image source, APDonald Trump and Hillary Clinton debate in St Louis, Missouri
Image source, AP
Image source, APBill Clinton at the debate in St Louis, Missouri
Image source, AP
Image source, APDonald Trump and Hillary Clinton shakes hands at the end of the debate
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Republican pollster Frank Luntz's focus group swung in Trump's favour.
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Of course, there are a few less scientific surveys out there that supporters like to flood to crown their candidate as the true winner - like this Drudge poll:
Drudge poll
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If you're just joining us, here are the main flashpoints of the night in clips.
It began badly with the two candidates shunning the traditional handshake:
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Trump soon drops the bomb by dredging up Bill Clinton's sex scandals:
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The zinger of the night on Clinton emails?
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He pummels her some more on emails:
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Clinton fights back by saying the Trump 'hot mic' sex tapes "represent exactly who he is", but he says he has "great respect for women".
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Trump admits playing the system to avoid paying federal income tax:
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Clinton and Trump joust over his proposed Muslim ban:
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