Boris Johnson's lead over Ken Livingstone is slim enough for the Labour candidate to pull off a surprise victory on Thursday, a new poll suggests.David Cameron was under pressure to give a statement on Jeremy Hunt to the Commons today, as he continued to bat away demands for an inquiry.Voters will be responsible for austerity policies unless they vote against Boris Johnson this week, a Labour MP has claimed.Labour's leaders are fighting this week's local elections by pointing the finger at the "out-of-touch" coalition government.British Prime Minister David Cameron insisted Sunday he had struck no secret deals with media baron Rupert Murdoch whereby policy was traded for his newspapers' political support.Boris Johnson will be re-elected mayor of London on the 3rd of May, according to the latest ComRess poll.