Aaron Peskin is an American elected official in San Francisco, California. He serves as a member of the San Francisco Board of Supervisors representing Supervisorial District 3. He was elected in 2015, having previously served two terms in 2001–2009. In January 2005, his colleagues elected him president of the board; he served as such until the end. of his term limit in 2009. He was head of the San Francisco Democratic Party Central Committee from 2008 to 2012.. District 3 includes the neighborhoods of North Beach, Chinatown, Telegraph Hill, North Waterfront, Financial District, Nob Hill, Union Square, Maiden Lane, and part of Russian Hill.