President Donald Trump is marking his 74th birthday Sunday (June 14), and if he is reelected this fall and completes a second term, would join Dwight D. Eisenhower and Ronald Reagan as the only men in American history to complete two presidential terms in their 70s.

Trump is already the oldest man to become president, at 70 years, 220 days when he was inaugurated. Until Trump, Reagan was the oldest to assume the presidency, at 69 years, 236 days when he was inaugurated.

If Trump is defeated this fall by presumptive Democratic White House nominee Joe Biden, the former vice president, at age 78, would become the nation’s oldest person to assume the presidency.

Trump was born in 1946 in Queens, New York. Before winning the White House in the 2016 election, he was a businessman and television personality.