From the Wikipedia page [1] which has a list of current members. The London Assembly is an elected body, part of the Greater London Authority , that scrutinises the activities of the Mayor of London and has the power, with a two-thirds majority, to amend the mayor's annual budget and to reject the Mayor's draft statutory strategies. The assembly was established in 2000 and is headquartered at City Hall on the south bank of the River Thames , close to Tower Bridge . The assembly is also able to investigate other issues of importance to Londoners (transport, environmental matters, etc.), publish its findings and recommendations, and make proposals to the mayor.