Biden, 78, becomes oldest president in American history

By Brooke Singman

Published January 20, 2021

Biden to call for unity in Inauguration Day address

Joe Biden, 78, officially became the oldest president of the United States in the nation's history when he was sworn in as commander in chief Wednesday.

His predecessor, President Donald Trump, previously held the record as the oldest ever to become president. Trump was 70 years old for his inauguration on Jan. 20, 2017.

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Prior to Trump's inauguration, former President Ronald Reagan, who left the White House in 1989 when he was 77 years and 349 days old, was the oldest person to serve as president.

Meanwhile, Vice President Kamala Harris, 56, is more than 20 years younger than the president.

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Fox News' Ronn Blitzer and The Associated Press contributed to this report.

Brooke Singman is a political correspondent and reporter for Fox News Digital, Fox News Channel and FOX Business.

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