The 40th President of the United States was Ronald Reagan, who served from 1981 to 1989. Before his presidency, he was a Hollywood actor and the Governor of California. Reagan is known for his conservative policies, economic reforms, and efforts to end the Cold War. During his time in office, Reagan implemented tax cuts and deregulation, which aimed to stimulate economic growth. His administration also focused on strengthening the military and promoting a strong anti-communist stance. Reagan's leadership style and communication skills earned him the nickname "The Great Communicator."