Last updated: 4 march, 2011 - 14:45 GMT

Being the prime minister's wife

Sarah and Gordon Brown

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There is no official title for the husband or wife of the British Prime Minister, so Sarah Brown used to call herself the 'WPM'.

Sarah Brown is the most recent Prime Minister's wife to leave the official residence at No 10 Downing Street.

Her husband Gordon Brown was Prime Minister for three years.

He's a lovely, attractive, warm, funny man.

Sarah Brown

In her first radio interview she talks candidly about juggling life as the 'prime minister's consort' whilst raising a family.

Sarah and Gordon married in the year 2000 when he was Chancellor of the Exchequer and Tony Blair was Prime Minister.

Sarah describes what made her fall in love with Gordon.

Sarah's now published a diary of her time behind the famous black door of No 10, mixing with presidents and first ladies and being scrutinised by the international media as she shared a stage with supermodels.

Sarah Brown, Carla Bruni and Michelle Obama

In early 2010, a respected political journalist published a book in which he claimed that Gordon Brown had bullied some members of his staff.

I think it’s a strong thing to call somebody. I think it was unfair and I think it was wrong.

Sarah Brown

He was said to have grabbed colleagues by their lapels, shoved them aside and shouted at them.

Sarah says she didn't recognise this description of her husband.

The Browns left Downing Street last summer when Gordon was voted out of office.

Sarah, Gordon, John and Fraser Brown

Reflecting on her time in Downing Street Sarah says that in the final stages, she found herself unable to trust civil service chief Sir Gus O'Donnell.

You need to be very confident that the whole of the civil service is there to serve the government of the day. You need to be very confident that what you're getting is that support... and it's a bond of trust. And I just felt at the end that I wasn't confident of that with Sir Gus.

Sarah Brown

The Cabinet Office would not comment on Sarah Brown's remarks or the contents of her book.

Sarah continues to promote a number of charities and has become one of the UK's most popular click Twitter users.

Sarah Brown's book is called Behind the Black Door.

First broadcast 3 March 2011

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