The London Mayor is the elected head of the Greater London Authority, responsible for overseeing the city's government and administration. This role includes managing public services such as transportation, housing, and the environment. The Mayor also has the power to set policies and budgets that affect the lives of Londoners. Elected every four years, the London Mayor works alongside the London Assembly, which holds the Mayor accountable and provides oversight. The position was established in 2000 to give London a more centralized leadership structure, allowing for better coordination of services and development across the city.