President-elect Joe Biden served as vice president in the Obama administration.Joshua Roberts/Reuters
- Fifteen former vice presidents have gone on to become president themselves.
- Some were unexpectedly inaugurated after the president's resignation, assassination, or fatal illness.
- Others, like President-elect Joe Biden, ran for office after their terms as vice president ended.
Throughout US history, 15 men who served as vice president have gone on to become president themselves.
Some vice presidents had no choice but to assume office due to the death or resignation of their predecessors, like Lyndon B. Johnson after John F. Kennedy's assassination. Others, like President-elect Joe Biden, chose to run for president after serving as second-in-command in the White House.
Here are 15 vice presidents who went on to serve as president of the United States.