Hillary Clinton has compared Donald Trump to politicians who encouraged ethnic cleansing during the Bosnian war.

The former Presidential candidate said that the President set out to 'inflame neighbor against neighbor' just like evil dictator Slobodan Milosevic while speaking with author Cheryl Strayed at the BookExpo 2017 in New York City on Wednesday.

Clinton said Trump wanted to see the 'flames' of hatred just like the massacre in Rwanda which left 800,000 people dead.

During the interview, the former Secretary of State said the Trump administration is 'abnormal' and said she is worried for the future of America as it 'could cause lasting damage to our institutions'.

She also attacked Trump's supporters as people who 'are always nursing a grievance' in an echo of her 'basket of deplorables' attack during the campaign.

Since losing the election Clinton has become increasingly outspoken about her shock defeat to Trump in November's election.

Hillary Clinton (pictured on Thursday) has compared Donald Trump to politicians who encouraged ethnic cleansing during the Bosnian war

Clinton (pictured left on Thursday) said the President (right on Thursday) set out to 'inflame neighbor against neighbor' just like evil dictator Slobodan Milosevic

She made the comments while speaking with author Cheryl Strayed (right) at BookExpo 2017 in New York City on Thursday

Earlier this week she said the President colluded with the Russians to help win the US election and said the Democratic party was useless.

Clinton renewed her attacks on him out at the 2017 BookExpo, the largest annual book trade fair in the United States.

The event took place in the Javits Convention Center in New York where Clinton was due to have her celebration party on election night.

In her victory speech Clinton was due to talk about breaking through the glass ceiling and refer to the roof of the center, which is made of glass.

In an interview in a hall which was two-thirds full of her supporters, Clinton made a parallel between the Trump campaign and the wars in Bosnia and the slaughter in Rwanda.

In Bosnia during the 1990s Serb forces led by Milosevic slaughtered 100,000 Croatians in the worst massacre in Europe since the Holocaust

Over 100 days in Rwanda in 1994 some 800,000 ethnic Tutsi people were killed by ethnic Hutu extremists in a barbaric genocide.

In the interview Clinton said the Trump campaign actively targeted the 'level of behavior that should be expected of everyone'.

She said: 'What I saw in this election was a deliberate effort to blow the top off of that. To basically say whatever feeling you have, whatever resentment, however angry you might be, get out there and express it.

During the interview, the former Secretary of State said that the Trump administration is 'abnormal' and said she is worried for the future of America as it 'could cause lasting damage to our institutions'

'(That) it's ok to take it out on other people, verbally or physically as we saw during the campaign. That is incredibly dangerous. That is unleashing a level of vitriol and defensiveness and hatred I don't think we should tolerate.

'As Secretary of State I traveled the world on behalf of our country... I will tell you it doesn't take much to rip off the politeness and the accommodation that keeps diverse peoples working and living together.

'We saw it in Bosnia where it was deliberately intended to inflame neighbor against neighbor.

'We saw it in Rwanda. We've seen it in many other places where political leaders, for their own purposes, their own political ideology, greed, religion, whatever it may be, really like those flames.'

Clinton lashed out at Trump's supporters too - during the campaign she said they were a 'basket of deplorables', a comment for which she later apologized after realizing it was a political misstep.

She said: 'And there's always kindling there, there's always people who are nursing a grievance, who feel that they weren't treated right, who feel somebody is getting ahead, who see the world as a zero sum game'.

Clinton is currently writing her latest memoir, which is due out later this year.

Earlier this week, Clinton said that the President (above on Wednesday) colluded with the Russians to help win the US election and said the Democratic party was useless

She is also working on a book with one of her pastors about the daily devotions that he gave to her during the campaign.

In the interview hosted by author Cheryl Strayed, Clinton said the Russian hacking of the Democratic party emails was 'in some ways even more painful' than the abuse she received from Trump.

Clinton said that when she lost to President Obama in 2008 for the Democratic party Presidential nomination 'it wasn't fun losing but I didn't worry about my country'.

She said America was going through an 'abnormal time' that was due to the Trump White House.

She said: 'When we look at the way this White House is behaving with some of the biggest challenges we face… it is deeply troubling.

'It's also worrisome that it could cause lasting damage to our institutions...

'...You can't be alright that a foreign adversary was trying to influence the outcome of our election'.

Clinton revealed that writing about her election loss is so painful she can only do it for a few hours before she needs a break.

She said that she has to leave her writing room in the attic of her farmhouse and take a nap or have a walk because she is overwhelmed.

Clinton spent the weeks after the election reading mysteries and said she adored authors like Louise Penny and Jacqueline Winspear.

She said: 'I read a lot of mysteries. It was very comforting because it was somebody else's problem to solve the murder and save the day.'

During the interview Clinton had a number of digs at Trump and said being President was 'the hardest job in the world, or at least it used to be'.

She said one of the drawbacks of the electoral system in America was that anyone could become President and it 'doesn't matter how qualified you are'.

Since her defeat Clinton has said she wants to remain in the public eye and has formed a Political Action Committee, Onward Together.

She has given a number of interviews and earlier this week said Trump's campaign could have have 'guided' the Russians after they hacked emails from the Democratic party.

Clinton is currently writing her latest memoir, which is due out later this year. She told the audience on Wednesday that writing about her election loss is so painful she can only do it for a few hours before she needs a break

She alleged that the President and his team could have helped the Kremlin to 'weaponize that information' and get him into the White House.

Clinton was speaking at the Recode tech conference in Silicon Valley and described Trump as having a 'visceral grasp on America's political underbelly'

She said: 'The Russians in my opinion - and based on intelligence and counterintelligence people I have spoken to - could not have known best how to weaponize that information unless they had been guided by a specific group of people. Guided by Americans.'

Asked who those individuals might be, she said: 'We're getting more information about all of the contacts between Trump campaign officials and Trump associates with Russians before, during and after the election.'

Pressed as to who she meant, she said: 'I'm leaning Trump. I think it's pretty hard not to.'

Clinton sounded like a conspiracy theorist as she said that there were '1,000 Russian agents' working against her during the campaign.

She said there were online 'content farms' and bots producing 'lies' about her and spreading fake news on social media.

Clinton tore into the Democratic party and said that when she announced her candidacy it was 'bankrupt... mediocre to poor, non-existent, wrong. I had to inject money into it to keep it going'.

In another interview with New York magazine Clinton claimed that when it came to Trump and her Democratic rival Bernie Sanders 'I beat both of them' because she won the popular vote against the President and clinched her party's nomination over Sanders.

Elsewhere she has blamed former FBI director James Comey for reopening the investigation into her use of a private email server weeks before the election.