President Joe Biden is the oldest U.S. president to date. The question of age has loomed heavily for Biden and remains a major point of contention in his 2024 presidential run. Biden will be 81 when voters cast their ballots in November, but by the next Inauguration Day in January 2025, he'll be 82 years old.

Age of presidents The youngest person to become U.S. president was Theodore Roosevelt, who, at age 42, succeeded to the office after the assassination of William McKinley.

According to the Biden's 2023 tax return, Joe Biden made $400,000 for being president and Jill Biden made $86,000 as a professor at Northern Virginia Community College. Most of the Bidens' net worth, an estimated $7 million of their $10 million, comes from their two Delaware homes.

For many years, Biden was a U.S. senator from Delaware. Biden was elected to the U.S. Senate in 1972 when he was 29 years old.