Nancy Patricia Pelosi is an American politician serving as speaker of the United States House of Representatives since 2019, and previously from 2007 to 2011. She has served as a U.S. representative from California since 1987. A member of the Democratic Party, Pelosi is the only woman to have served as speaker of the U.S. House. A member of the D'Alesandro political family, Pelosi's father, Thomas D'Alesandro Jr., was a notable longtime politician. Before her election to Congress, she chaired the California Democratic Party from 1981 until 1983. Now in her 18th term, Pelosi was first elected to Congress in a 1987 special election. She is the dean of California's congressional delegation. She represents California's 12th congressional district, which comprises most of San Francisco. Initially, Pelosi represented the 5th district; after district boundaries were redrawn following the 1990 census, she represented the 8th district. Pelosi has led the House Democrats since 2003.