Now the Daily Mail's Political Editor-at-Large, Isabel left The Sunday Times to co-author, with Lord Ashcroft, the famously-unauthorised biography of David Cameron "Call Me Dave". In this exclusive interview, she gives her inside view on the Chris Huhne speeding points scandal, which led to his resignation and imprisonment; discusses life as a lobby journalist and political TV pundit, and explains how writing her recent book "Farmageddon" changed her views on the farming industry.