Michael Bloomberg at a city-sponsored rally to promote public service in 2013 / Photo: Spencer T Tucker.

Michael Bloomberg was elected mayor of New York City in 2001, serving three consecutive terms.

Michael Bloomberg was elected mayor of New York City in 2001, serving three consecutive terms. During his tenure, the crime rate decreased dramtically, high school graduation increased, and the city's park system was expanded. As mayor, Bloomberg instituted a $7.5bn municipal affordable housing plan, the largest in the US. In addition, he opened the Third Water Tunnel, a long-delayed upgrade to NYC's water system, which allows for upgrades and repairs to the previous century-old infrastructure. Bloomberg's public service often reflects his policy interests. His plan to replace all of NYC's 250,000 streetlights with energy-efficient LED's would save the city millions of dollars and reduce the city's carbon footprint. The $4.2 billion Atlantic Yards development project included the Barclay's Center, a major cultural addition to New York's public life. A $50 million Willets Point infrastructure upgrade, including sewers and storm preparedness, will enable new development in the area. New York also experienced a continuous reduction in murder rates, at levels not seen since the 1960s.