大象传媒

It's the closest race ever to become Mayor of London. Can Conservative Boris Johnson overhaul Labour's Ken Livingstone, the man who's run the capital for the last eight years? And what impact will former policeman Brian Paddick make for the Liberal Democrats?

Andrew Neil and an audience of Londoners put their questions to the main mayoral candidates, Ken Livingstone, Boris Johnson and Brian Paddick, in a special debate.