Dianne Goldman Berman Feinstein is an American politician who has served as the senior United States Senator from California since 1992. A member of the Democratic Party, she was mayor of San Francisco from 1978 to 1988.
Born in San Francisco, Feinstein graduated from Stanford University in 1955. In the 1960s, she worked in local government in San Francisco. Feinstein was elected to the San Francisco Board of Supervisors in 1969.