In 1975, Diane Watson was elected to the Board of Education of the Los Angeles Unified School District.
In 1978, she became the first black woman to be elected to the state Senate, where she served for 20 years.
In 2001, Watson was elected to fill the seat of Democratic Rep. Julian Dixon, who died of an apparent heart attack.
She received 72,955 votes or 75 percent of the vote to Noel Irwin Hentschel, a relatively unknown Republican businesswoman, who garnered about 20 percent of the vote.
She was elected to a full term in 2002.