In 2015, Isabel co-authored of Call Me Dave, the sensational unauthorized biography of David Cameron.

 

Written with former deputy chairman of the Tory party Lord Ashcroft KCMG, and based on interviews with several hundred sources, the book attracted global publicity.

 

Rights were sold to the Daily Mail for a six figure sum, with royalties donated to military charities supported by Lord Ashcroft.

 

The newspaper described the biography as the “political book of the decade.” Further extracts were serialized by The Sunday Times.

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