Mayor of London the winner hours earlier. Mr Sadiq Khan, a member of the Labour party, is the first Muslim to be elected Mayor of London. Incumbent Mayor Boris Johnson did not run for re-election for a third term in office, as he had been elected the Member of Parliament for the Conservative Party in Uxbridge and South Ruislip in the 2015 General Election. Most powers are derived from the Greater London Authority Act 1999, with additional functions coming from the Greater London Authority Act 2007, the Localism Act 2011 and Police Reform and Social Responsibility Act 2011. The main functions are: The
Deputy Mayor of London of Policy and Planning and Chief of Staff to Johnson until his death in office in 2011. In May 2011, Sir Edward Lister was then appointed as his successor. Richard Barnes ceased to be Deputy Mayor on 4 May 2012, when he lost his seat in the Assembly. Victoria Borwick succeeded him in the post. Borwick resigned in May 2015, following her election as Member of Parliament for Kensington, being succeeded by Roger Evans. The 2016 London mayoral election was won by Sadiq Khan, a member of the Labour Party. Following the election, he appointed Joanne McCartney Statutory Deputy Mayor,