Original: 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.
Simplified: The London Assembly is an elected body and part of the Greater London Authority that verifies the activities of the Mayor of London. It has the power, with a two-thirds majority, to amend the Mayor's annual budget.