Age and health concerns about Joe Biden

Joe Biden was 78 years, 2 months of age when he assumed office as president of the United States on January 20, 2021. At the time, he became both the oldest person to be inaugurated as president and the oldest sitting president in U.S. history. While Biden campaigned for re-election in 2024, he suspended his campaign in July 2024 after receiving pressure to withdraw due to electability concerns arising from his age and health.

Before and during Biden's presidency, American voters and then-former President Donald Trump expressed concerns about Biden's health and fitness for office. These concerns led Democratic U.S. Representative Dean Phillips to launch an unsuccessful primary challenge against Biden in the 2024 presidential election. In a February 2024 report, prosecutor Robert Hur opined that Biden's memory had "significant limitations"; the White House dismissed the report as a "partisan hit job". Concerns about Biden's age and health intensified after a poor performance by Biden during his June 2024 presidential debate against Trump, leading a number of commentators and many Democratic lawmakers to call for Biden to withdraw from the 2024 presidential race. After initially stating that he would remain in the race, Biden ultimately withdrew on July 21, 2024; he later endorsed Vice President Kamala Harris for the Democratic presidential nomination. In the weeks and months following Biden's June 2024 debate against Trump, media outlets reported on efforts that had been made to manage and conceal Biden's age and health-related limitations during his presidency.

At the time his term as president ended on January 20, 2025, Biden was 82 years and 2 months old.