Former Prime Minister David Cameron has accused Michael Gove and Boris Johnson of “trashing the government” in their campaign for Brexit.

The former Conservative leader has spoken candidly about the Brexit referendum and how he feels a second vote may be necessary ahead of the launch of his new book.

In an interview with The Times , Cameron calls Gove "mendacious". The newspaper also quotes from his book, in which he says the pair acted "appallingly".

Cameron said: "What Boris and Michael Gove were doing was more exciting than the issues I was trying to get across. I felt like I was in a sort of quagmire by the end.”

He added: "I say in the book: Boris had never argued for leaving the EU, right? Michael was a very strong Eurosceptic, but someone whom I’d known as this liberal, compassionate, rational Conservative ended up making arguments about Turkey [joining] and being swamped and what have you. They were trashing the government of which they were a part, effectively.”

Michael Gove and Boris Johnson campaigning for Brexit in 2016

The interview comes ahead of the launch of Cameron's book For The Record, which comes out on September 19 .

Here are six other things Cameron revealed:

A second referendum may be needed

When asked about a second vote on Brexit, Cameron told The Times: “I don’t think you can rule it out because we’re stuck.”

He added: “I’m not saying one will happen or should happen.

"I’m just saying that you can’t rule things out right now because you’ve got to find some way of unblocking the blockage. I think there are certain things you shouldn’t do to unblock the blockage. I think proroguing parliament – pretending it doesn’t exist – I think that would be a bad thing.”

He thinks about the vote a lot

Speaking at his home in London, Cameron said: "I think about this every day. Every single day I think about it, the referendum and the fact that we lost and the consequences and the things that could have been done differently, and I worry desperately about what is going to happen next.”

Asked if he found sleeping hard, he said: “I worry about it a lot. I worry about it a lot.”

Some people shout at him in the street

When asked by The Times if people shout at him, Cameron said: "People come up and say all sorts of things.”

He added: "I’ve had some robust exchanges.”

Cameron was depressed when he stepped down

Cameron was Prime Minister from 2010 to 2016.

In the interview he said: "[I] wasn’t happy to leave. I was miserable about giving up the job I loved and working for the country I loved. I was miserable about it.”

He added he was "hugely depressed" about leaving.

 

Cameron called world leaders the day after the Brexit vote

The interview states that the morning after the referendum vote, Cameron rang former US President Barack Obama and leaders across Europe to say "I am sorry".