大象传媒

With less than a month to go until Londoners go to the polls, four of the candidates in London鈥檚 Mayoral race debate the issues in the studio.

The candidates include Sian Berry (Green Party), Sadiq Khan (Labour), Caroline Pidgeon (Liberal Democrat) and Peter Whittle (UKIP).

The Conservative candidate Zac Goldsmith was invited but has chosen not to attend.