Diane Feinstein was an American politician who served as a United States Senator from California from 1992 until her death in 2023. She was a member of the Democratic Party and was known for her work on issues such as gun control, environmental protection, and national security. Feinstein was the first woman to serve as the mayor of San Francisco and played a significant role in various legislative efforts throughout her career. Born on June 22, 1933, in San Francisco, Feinstein began her political career in local government before moving to the state and national levels. She was recognized for her leadership and was involved in several high-profile investigations, including those related to intelligence and terrorism. Feinstein's long tenure made her one of the most prominent figures in American politics.