abstract:Tim Donovan is the Political Editor for the BBC's regional news service for London, BBC London. He also presents the London regional opt-out for The Politics Show each Sunday on BBC One, as well as occasionally presenting the main programme when regular presenter Jon Sopel is away.
Mr Livingstone's political opponents have told BBC London political editor TimDonovan the tour raised questions about judgement and was "humiliating and embarrassing".
Tim O'Donovan, an 81-year-old retired insurance broker from Windsor, used the court circular - introduced by King George III and published daily in the Times, the Daily Telegraph and the Scotsman - to come to his estimate.