That's it for our live coverage of a tumultuous few hours in the election campaign. 

Thank you for joining us.

You can follow the latest developments here.

Rajini Vaidyanathan
BBC News, Manchester, New Hampshire

Image source, AP

She spoke with emotion, energy and from the heart, but didn’t name Mr Trump once - referring to him instead, as the candidate. But aside from expressing her distaste at the Republican nominee’s tone this election, she had another important message to those in the room - that they must vote. 

Turnout, she said, was key. It’s what helped her husband win this state of New Hampshire, and will be crucial for Hillary Clinton too. In some precincts her husband won by an average of only 66 votes. Every ballot can make a difference, she urged the crowd. If Mrs Obama really is a secret weapon for the Clinton campaign, then the true measure of how powerful her sermon was will be tested in how she manages to rally the Democratic base. 

You can follow Rajini on the campaign trail here: twitter.com/BBCRajiniV, external

Rajini Vaidyanathan
BBC News, Manchester, New Hampshire

Image source, European photopress agency

She has been dubbed Hillary Clinton’s secret weapon, a speaker who has the ability to reach voters in a way Mrs Clinton cannot. Watch her on stage in New Hampshire, and you can see why she has earned this moniker. Her impassioned and direct oratory has been used sparingly this campaign. She’s stumped for Mrs Clinton less than 10 times - but crucially all her speeches have been in swing states, and nearly all have been on college campuses. 

This strategy is all part of an effort to mobilise millennial voters, many of whom backed Bernie Sanders in the primaries. This rally was packed with students from across the political spectrum, including a young Republican who told me he was disgusted by Donald Trump, but yet to be convinced by Hillary Clinton. 

As Michelle Obama entered the room, the deafening screams were at the sort of ear-piercing level, usually reserved for rock stars.  And it was to this backdrop, the first lady expressed her revulsion at Donald Trump’s comments about women, as heard on that recently released tape. 

You can follow Rajini on the campaign trail here: twitter.com/BBCRajiniV, external

Donald Trump's campaign have strongly denied a report in Serbian weekly magazine Nedeljnik, external, claiming that he apologised for the US bombing campaign against the Serbian regime which was conducted in the 1990s during the presidency of Bill Clinton.

"The bombing of Serbs, who were our allies in both world wars, was a big mistake,” the statement reads, according to Newsweek, external. “Serbians are very good people," it continues. 

"Unfortunately, the Clinton administration caused them a lot of harm, but also throughout the Balkans, which they made a mess out of."

In a press release titled "Trump campaign statement on hoax reporting", Trump adviser Jason Miller said that "this was a hoax and we look forward to receiving a formal retraction and apology from all involved."

Trump's Indiana state director, Suzie Jaworowski, who reportedly facilitated the interview, also denied that it had taken place.

The Trump campaign is aggressively attacking media organisations, following reports in at least four different publications claiming that Trump committed sexual assault. 

The BBC's Aleem Maqbool is in Utah today to speak to Evan McMullin, an independent presidential candidate who is gaining on both Hillary Clinton and Donald Trump in the state. 

One poll on Wednesday had Trump and Clinton tied on 26%, with McMullin just four points behind.

You can follow Aleem here, external. 

Image source, EPA

White House press secretary Eric Schultz has been speaking to journalists onboard Air Force 1, as the president travels to Pittsburgh. 

Asked about the possibility that Donald Trump may hit back at Michelle Obama after her speech today, Mr Schultz said: "I can’t think of a bolder way for Donald Trump to lose even more standing than he already has than by engaging the first lady of the United States".  

He said President Obama's opposition to Mr Trump was based on policy and temperament concerns "that has not just become evident over the last 24 hours, but has become evident in a long series of views and statements that we’ve seen from Donald Trump."

Hillary Clinton has been speaking in San Francisco where she is visiting campaign volunteers.

"I don't think there has ever been a more important 26 days in American history," she said after being introduced by a young man in a hoodie.

"We're not just going to win. We are going to take the confidence and optimism and, yes, the love and kindness with us," she said.

"We know, we've already learned who Donald Trump is. What we have to prove in this election is who we are, what we stand for, what we believe in."

Michelle Obama's speech just over an hour ago was powerful stuff. Speaking at a rally for Hillary Clinton in New Hampshire, the first lady went on the attack over Donald Trump's treatment of women. 

"Obama's speech will go down as one of the most important of this political cycle, a moment in which she crystallized the feelings of many women in the wake of the Trump hot mic tape," Chris Cillizza of the Washington Post writes, external. 

"She was outraged, yes, but also hurt — for herself and for women more broadly.  And she expressed all of those emotions in ways you very rarely see any politician (or private citizen do) — particularly one as well known as Obama." 

Image source, Getty Images

Trump's rally in Florida has now come to an end. 

He spent much of his speech defending himself against multiple reports of inappropriate sexual behavior and lashed out at his female accusers, saying they were "horrible, horrible liars". 

"They're pure fiction, and they're outright lies. These events never happened," he said at the West Palm Beach rally. 

He also attacked the media and again said Hillary Clinton deserved to be in prison as the crowd chanted "Lock her up! Lock her up!"

Trump again focused his attacks on the Clintons, suggesting they had corrupted the Justice Department and other governmental agencies. 

"Hillary Clinton is guilty of all the things that [FBI] Director [James] Comey stated at his press conference and congressional hearings," he said,. 

"And yet, after reading all of these items where she's so guilty, he let her off the hook. While other lives - including General Petraeus and many others - have been destroyed for doing far, far less." 

"This is our moment of reckoning as a society," he said. 

"These false attacks are absolutely hurtful," he said, but added that it was not about him, but about the American people.

"To be lied about, to be slandered to be speared so publicly and before your family that you love is very painful."

Image source, AP

"In my former life, I was an insider" he said.

"I knew what it was like - and I still know what it's like - to be an insider. It's not bad," he declared.

"Now I’m being punished for leaving the special club and revealing to you the terrible things that are going on with this country."

"Because I used to be part of the club, I'm the only one who can fix it," he said. 

Just in: Donald Trump Jr deleted this tweet making light of sexual harassment that he posted in 2011.

"Our president is incompetent," Trump said of President Obama. "All he wants to do is campaign".

"He's led a very divided nation and it's only gotten worse."  

Trump said Mr Obama should stop campaigning and start focusing on creating jobs. 

"The corrupt political establishment is a machine. It has no soul. I knew these false attacks would come. I knew this day would arrive. And I knew the American people would rise above it and vote for the future they deserve." 

"The only force strong enough to save our country is us," he said. 

The New York Times has responded to a letter from Mr Trump's lawyer, requesting that their story about two women who were allegedly touched by Trump be removed from their website.

"The essence of a libel claim, of course, is the protection of one's reputation. Mr Trump has bragged about his non-consensual sexual touching of women. He has bragged about intruding on beauty pageant contestants in their dressing rooms. He acquiesced to a radio host's request to discuss Mr Trump's own daughter as a "piece of ass". Multiple women not mentioned in our article have publicly come forward to report on Mr Trump's unwanted advances. Nothing in our article has had the slightest effect on the reputation that Mr Trump, through his own words and actions, has already created for himself."

It continues: "We did what the law allows: We published newsworthy information about a subject of deep public concern. If Mr Trump disagrees, if he believes that American citizens had no right to hear what these women had to say and that the law of this country forces us and those who would dare to criticize him to stand silent or be punished, we welcome the opportunity to have a court set him straight."