Hillary Clinton spoke of her 'regret' at her relationship with Harvey Weinstein in an appearance on The One Show after the shamed Hollywood producer threw her a star-studded campaign fundraiser for her failed presidential run.

In tonight's live interview on BBC One, she compared Weinstein - who donated to the Democratic Party for more than 20 years - to US president Donald Trump.

The former secretary of state told presenters Alex Jones and Amol Rajan that allegations against the producer were part of a wider problem in society, drawing a parallel with Trump's Access Hollywood tape.

The former secretary of state said that sexual harassment of women was endemic in society as she appeared on the BBC show to promote her new book

'He is someone who is different from the person I knew, and the person that was involved for many years in Democratic politics for me, and for Barack Obama and so many of us,' she said. 'He was very helpful.

'It is just appalling, what is coming out now. I want to commend the women who are finally stepping forward.

'I'm very glad they're getting support. It will take courage of women stepping forward, and the rest of us supporting them to shine a bright spotlight.

Hillary Clinton appeared on The One Show to promote her new book, in which she focuses on her 'deeply disturbing' loss to Donald Trump

'It's not just about one person. This a problem that we're discovering is endemic in many parts of society.

'I regret that none of us knew about this sooner, and could have done something about it.

'Of course, he does face consequences. I just want to underscore that it's not about one person.

'I made a big point in trying to talk to people during my campaign about what President Trump said, describing his own conduct… It didn't get the attention.

'It didn't raise the seriousness that now finally we're seeing. I hope that continues and people really understand they're not alone and they can come forward.'

Weinstein has denied 'any allegations of non-consensual sex' after becoming the subject of police investigations in the US and UK.

Clinton compared Donald Trump's Access Hollywood tape to allegations made against Weinstein

Appearing on the show to promote her new book, What Happened, she said it was 'deeply disturbing' that Americans had elected Trump instead of her, discussing a recording in which he was heard to boast about grabbing women 'by the p****,' adding when you're famous 'you can do anything'.

Asked if he was the right man for the job of commander in chief, Clinton laughed and replied: 'No, I don’t think so.'

It came hours after she falsely told the BBC's Andrew Marr that Trump had admitted sexually assaulting women, despite him describing his remarks as 'locker room talk'.

Clinton said remarks made by Donald Trump and allegations against Harvey Weinstein showed endemic sexual harassment

Her criticisms of the Republican president prompted a Twitter between journalist Piers Morgan and former director of communications for Tony Blair, Alistair Campbell.

Morgan, 52, who has been vocal about his friendship with Trump, branded Clinton a 'borderline pathetic' 'loser', calling the book tour 'humiliating'.

He Tweeted: 'Watching Hillary Clinton still whining/excusing away on The One Show. Looks & sounds so diminished. Sad & borderline pathetic now.'

Campbell responded by saying she was far more qualified for the job than Trump, saying: 'Oh @piersmorgan do me a favour Piers. @hillaryclinton is head and shoulders above the putrescent @potus and the Russian theft etc was real.'

Morgan replied: 'She lost. This never-ending loser tour is humiliating.'

Campbell described Clinton as 'an important political and historic figure entitled to tell her story as she wishes' to which Morgan responded: 'She's a serial loser of little historical importance.'