Hillary Clinton's marriage with her husband is a 'total fake' and is just for the benefit of her Presidential campaign, an expert on the Secret Service has claimed.

Ronald Kessler said that Mrs and Mrs Clinton have entered into a 'business relationship' to further their careers.

He also claimed that Mrs Clinton, the leading Democratic Presidential candidate, has disdain for ordinary people and treats those beneath her with 'contempt'.

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Hillary Clinton’s marriage is a ‘total fake’ and is just for the benefit of her presidential campaign, an expert on the Secret Service has claimed

Mr Kessler is a US author and investigative journalist who has written extensively on the Secret Service.

Earlier this year in his latest book he claimed that Mr Clinton has a blonde mistress who his security detail nicknamed 'Energizer'.

In an interview Mr Kessler turned his fire on the Clintons' marriage.

He said: 'Agents say that it's a business relationship. It's not a marriage at all. It's a total fake, like everything else about Hillary. It's just a big show and a scam.

'Hillary Clinton pretends to be this champion of the little people - she's gonna help the middle class, she's compassionate.

'But the reality behind the scenes is she treats her agents and others less powerful than she is with contempt.

He also claimed that Mrs Clinton, the leading Democratic Presidential candidate, has disdain for ordinary people and treats those beneath her with 'contempt'

'In fact she's so abusive to her agents that behind assigned to her detail is considered a form of punishment. That tells you something about her character.'

Mr Kessler has written 20 books about the Secret Service, the FBI and the CIA and is a regular contributor to the Washington Post.