Dianne Goldman Berman Feinstein, born Dianne Emiel Goldman is the senior United States Senator from California. A member of the Democratic Party, she has served in the Senate since 1992. She also served as 38th Mayor of San Francisco from 1978 to 1988. Born in San Francisco, Feinstein graduated from Stanford University. In the 1960s she worked in city government, and in 1970 she was elected to the San Francisco Board of Supervisors.