"I will be a president for all our our people", Trump says, citing a remark Clinton made, saying that half Trump's supporters are a "basket of deplorables".

Trump surrogates have been told by the campaign to keep bringing up that phrase, which Trump supporters are insulted by. 

Raddatz: "Would you introduce the threat of US military force beyond a no-fly zone to back up Syrian diplomacy?"

Clinton says she would not advocate military force, but she does support using the special forces that are currently in place. 

She then says she would specifically target IS leader Abu Bakr al-Baghdadi.

The Hillary campaign is firing out emails at the rate of about one per minute.

Here's the headlines to a few:

"Trump Dangerously Promotes Russia’s Brutal Bombing Campaign in Syria"

"Trump’s Foreign Policy: Fiction and Hypocrisy"

"Clinton's Real Record on Syria, and Trump's Dangerously Unserious Approach" 

Image source, Getty Images

"Tell me what your strategy is," demands moderator Martha Raddatz as Trump riffs on what he calls America's "stupidity in the Middle East" by announcing its military plans against the so-called Islamic State before attacking.

The general "are spinning in their graves", he adds.

Trump continues to attack Clinton's record as secretary of state. 

"I don't like Assad at all, but Assad is killing ISIS. Russia is killing ISIS and Iran is killing ISIS," and the three have lined up together, he says, as moderator Martha Raddatz tells him his time is up. 

Raddatz presses Trump on what he thinks will happen if Aleppo falls into the hands of the so-called Islamic State.

"I think that it basically has fallen," he responds. 

Image source, Getty Images

Claim: Donald Trump mocks Hillary Clinton for saying she was just quoting from the film Lincoln when she said that politicians should have different positions in public and private. "Abraham Lincoln never lied - that is the big difference between Abraham Lincoln and you," he tells his Democratic rival.

Reality Check verdict: The Clinton quote comes from an April 2013 speech to the National Multifamily Housing Council. It was one of the paid speeches she gave before launching her presidential bid, which she refused to release, but details of which have now been revealed in leaked emails. 

She did give an example from the movie Lincoln, and the deal-making that went into passage of the 13th Amendment, a process she compared to sausage-making.

She said: "It is unsavory, and it always has been that way, but we usually end up where we need to be, but if everybody's watching, you know, all of the back-room discussions and the deals, you know, then people get a little nervous to say the least. So, you need both a public and a private position.''

Clinton answers a question about whether the Syrian civil war and the Holocaust in Europe are similar.

She's advocating for a no-fly zone, saying that "we need leverage with the Russians" in order to bring them to the negotiating table. 

But she warns that the US needs to be careful about the aggression and ambitions of Russia. 

"I would go to the negotiating table with more leverage than we have now," but adds she does support prosecuting war crimes against Russia and Syria. 

Clinton cites her legislative experience as the New York senator, and the laws that she helped to pass. 

"She was a disaster as a Senator, a disaster," Trump says. 

Trump attacks Clinton's judgement for her role in US interventions in "Libya, Syria, and Iraq", focusing on the so-called Islamic State.

"Now they're in 32 different nations. Congratulations, great job," he said turning to face Clinton.

Moderator Cooper asks: "Did you use that $916m loss to avoid paying federal taxes?"

"Of course I do," he said, before adding that many of Clinton's donors did the same thing. 

"I absolutely used it, but so did Warren Buffet and so did George Soros," he said. 

If she had a problem, she had 30 years to fix it, he said. "She's all talk".

Trump contends that if Clinton was an effective senator, she could have passed legislation getting rid of carried-interest provisions, in which some financial managers can claim income as capital gains. 

She responds by outlining all that she has accomplished in her tenure. 

Trump says he knows the tax code better than any other candidate, a statement he made immediately after the New York Times reported on his taxes a week ago. He pivots to saying Clinton has done nothing to rectify the messy tax code after 30 years of public life.

Trump insists he'll release his tax returns following a government audit, saying he'd be "proud to do so".

How much will Trump cut your taxes?

"Big league," says he.

Hillary wants to raise your taxes, "massively", he adds.

Claim: Donald Trump refuses to back down over his claim that he did not support the Iraq War. 

Reality Check Verdict: It has been debunked. Trump did not publicly speak out against the war before it started.More details here.

Clinton accuses Putin's regime of "trying to influence the outcome of the election".

She says the Russians are trying to help Trump to win the election.

"We have never in the history of our country been in the situation where an adversary - a foreign power - is working so hard to influence the outcome of our election", she says. 

Maybe it's because he's praised Putin, or maybe it's because he's financially tangled with Russian businessmen, she adds, noting that Americans will only know if he'd release his taxes.

"I don't know Putin," says Trump, insisting he hasn't been working with the Russia government in his campaign.

He says it would be good if the US could co-operate with Russia to defeat the so-called Islamic State.

"Is it acceptable for politicians to have a public and a private face?" a voter asks.

Clinton says that when she spoke about having a public and a private face, she was talking about the film Lincoln, which was directed by Steven Spielberg.

"Honest Abe never lied," says Trump, drawing laughs.