The Conservative party has taken a three-point lead in a new poll.
Research by Ipsos MORI for London's Evening Standard found that days of speculation about Ed Miliband's leadership has seen the party's support drop four points to 29%.
Meanwhile, the Conservatives were up two on 32% - the biggest advantage the polling firm has recorded for them since 2010. Just 13% of those surveyed agreed Mr Miliband was "ready to be prime minister", while 73% thought the opposite. The Liberal Democrats were up one on 9%, and Ukip down two on 14%.