Jones added that the real estate mogul had demonstrated an 'appalling lack of patriotism' over his disrespect to the U.S.

CNN commentator Van Jones ripped into Donald Trump moments after the presidential debate.

Jones warned his fellow pundits 'you can't polish this turd', during a discussion of the Republican candidate's performance during the debate.

He said Trump's refusal to say whether or not he would accept the results of the election next month was a 'sad night for this country.'

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CNN commentator Van Jones (right) ripped into Donald Trump (left) moments after the presidential debate

'You can't polish this turd,' he added.

'Technically, you can't polish any turd,' CNN host Anderson Cooper responded.

Jones was furious with Trump's lack of respect towards American political institutions, adding that the real estate mogul had demonstrated an 'appalling lack of patriotism.'

'I'm going to be very, very clear about this,' he said on the CNN panel, moments after the end of the debate.

'Al Gore respected the Constitution, respected the process, respected every voter. He went to our Supreme Court, asked for a resolution on his own terms as did George W. Bush. And when the election results were certified, he told his party and base to stand down and accept this, even though a lot of us were very, very upset.

Jones warned his fellow pundits 'you can't polish this turd', during a discussion of the Republican candidate's performance during the debate

'Technically, you can't polish any turd,' CNN host Anderson Cooper (center) responded

'What you just got now was the nominee of a major party for the first time in our history signaling to the American people that he has so little faith in our institutions, that he has so little faith in our people, and so little faith in our courts, and so little faith in the Republican governors, the Republican secretaries of state across this country that he will not stand in front of his own country, in front of his own nation and say that he respects the process and the outcome,' he said.

Trump had warned during the final presidential debate on Wednesday that he may not accept the outcome of the November 8 election if it doesn't go his way.

'I will tell you at the time. I will keep you in suspense,' Trump told Fox News Channel anchor Chris Wallace after he was pressed to declare that he would concede to Clinton if he loses.

Trump, who didn't shake Clinton's hand after the debate, revived charges that the election is 'rigged' in her favor by 'dishonest' reporters – and doubled down on allegations that voter fraud could run rampant.

Jones was furious with Trump's lack of respect towards the American political institution, adding that the real estate mogul had demonstrated an 'appalling lack of patriotism' during the debate (pictured)

Donald Trump and Hillary Clinton met Wednesday night in the third presidential debate, a Las Vegas prizefight for the ultimate prize in global politics

He said 'millions' of people are on voter rolls 'who shouldn't be registered.' News reports and independent investigations have found deceased Americans with active registrations, along with illegal immigrants who use driver's licenses to obtain ballots.

'That's horrifying,' Clinton responded, aghast at the idea of a presidential candidate questioning an election's validity.

And analyst Jones seemed equally appalled.

'That is an outrage!' he said. 'The appalling lack of patriotism from this man. To say this and praise Putin and Assad more than he has ever praised any American president.