As many Democratic presidential candidates prepare for a crowded primary, age often comes up when discussing if someone is fit for the White House.
On Tuesday, Senator Bernie Sanders announced that he would run again. If he were to win, he would become the oldest president – besting President Donald Trump by seven years. At age 76, if Joe Biden decides to run, he would also be a contender for the oldest person to take the White House.
However the range of ages for 2020 candidates is vast. South Bend, Indiana Mayor Pete Buttigieg just turned 37, making him the youngest to enter the race.
Congress is seeing an increase in younger members as well. In January, 29-year-old Alexandria Ocasio-Cortez became the youngest member of congress, contributing to a 420% increase in millennial members.
Despite this younger wave of political participation, the most common ages for presidents remains in the 50s.
While Obama was the fifth youngest president at the start of his first term, President Trump was the oldest to be inugurated at age 70.
Here’s a list of all of the presidents in order of youngest to oldest: