This is the electoral history of Ronald Reagan. Reagan, a Republican, served as the 40th president of the United States (1981–89) and earlier as the 33rd governor of California (1967–75). At 69 years, 349 days of age at the time of his first inauguration, Reagan was the oldest person to assume the presidency in the nation's history, until Donald Trump was inaugurated in 2017 at the age of 70 years, 220 days. In 1984, Reagan won re-election at the age of 73 years, 274 days, and was the oldest person to win a US presidential election until Joe Biden won the 2020 United States presidential election at the age of 77 years, 349 days.