Ronald Reagan was an American politician and actor who served as the 40th President of the United States from 1981 to 1989. Before entering politics, Reagan worked as a sports broadcaster and later became a well-known film actor in California. He served as the president of the Screen Actors Guild from 1947 to 1952 and again from 1959 to 1960. Reagan was elected governor of California in 1966 and served two terms. During his presidency, he was known for his conservative policies, including tax cuts, increased defense spending, and deregulation.