Joseph Robinette Biden Jr. is an American politician who is the 46th and current president of the United States. A member of the Democratic Party, he served as the 47th vice president from 2009 to 2017 under Barack Obama and represented Delaware in the United States Senate from 1973 to 2009.

Who is the oldest president elected?

Age of presidents

The youngest to become president by election was John F. Kennedy, who was inaugurated at age 43. The oldest person to assume the presidency was Joe Biden, who took the presidential oath of office two months after turning 78.

How old was Ronald Reagan when he became president?

At 69 years, 349 days of age at the time of his first inauguration, Reagan was the oldest person to assume the U.S. presidency, a distinction he held until 2017 when Donald Trump was inaugurated at age 70 years, 220 days.