The 2020 Democratic field could produce the oldest or youngest president in history — here's how old all 20 candidates would be if they took office

  • The 2020 Democratic primary field is one of the most diverse in history in terms of age.
  • Mayor Pete Buttigieg, 37, Reps. Tulsi Gabbard and Eric Swalwell, 38, and Rep. Seth Moulton, 40, are all attempting to overtake Teddy Roosevelt’s status as America’s youngest president.
  • President Donald Trump holds the title of oldest president in history, taking office at 70 years and 220 days old. Joe Biden, Elizabeth Warren, and Bernie Sanders could all break his record if elected.
  • Here are the ages of 2020 Democratic candidates, and how old they would be upon taking office on Inauguration Day 2021.
  • Visit Business Insider’s homepage for more stories.

Former Vice President and US Senator Joe Biden formally entered the 2020 Democratic primary on April 25.

Biden, who initially served as a county executive in Delaware in 1970 before being elected to the Senate in 1972, has been in elected office longer than eight of his fellow Democratic primary contenders have been alive.

The 2020 field is one of the most diverse in history in terms of age, which has become a focal point for 2020 Democrats. 37-year-old Mayor Pete Buttigieg, for example, is partially centering his campaign around the theme of intergenerational justice, arguing a new generation of leadership can solve the problems facing America.

The US constitution mandates that a candidate must be 35 years of age to be eligible for the presidency. The youngest-ever president was Theodore Roosevelt, who took office at 42 years and 322 days old in 1901.


Read more:
Americans’ ideal presidential candidate is a lot younger than Bernie Sanders, Joe Biden, or Trump

Buttigieg, 37, Reps. Tulsi Gabbard and Eric Swalwell, 38, and Rep. Seth Moulton, 40, are all attempting to overtake Roosevelt’s record as America’s youngest president.

President Donald Trump holds the title of oldest president in history, taking office at 70 years and 220 days old.

But three of the top candidates in the Democratic primary field could break his record.

Biden, Sen. Bernie Sanders, and Sen.Elizabeth Warren would be the oldest presidents in history if elected, hypothetically taking office at ages 71, 78, and 79, respectively.

Here’s a breakdown of the 2020 Democrats’ age and how old they would be at a potential inauguration.


Mayor Pete Buttigieg is currently 37, and would be 39 years and 1 day old upon taking office.

Read more about Pete Buttigieg’s campaign.


Rep. Tulsi Gabbard is currently 38 years old, and would be 39 years and 283 days old upon taking office.

Read more about Tulsi Gabbard’s campaign.


Rep. Eric Swalwell is also 38 years old. He would be 40 years and 65 days old on Inauguration Day 2021.

Read more about Eric Swalwell’s campaign.


Rep. Seth Moulton of Massachusetts is 40 years old, and would be 42 years and 88 days old upon taking the oath of office.

Read more about Seth Moulton.


Andrew Yang is currently 44 years old, and would be 46 years and 7 days old on Inauguration Day.

(AP Photo/Seth WenigEntrepreneur Andrew Yang

Read more about Andrew Yang’s campaign.


Former HUD Secretary Julian Castro is also 44 years old, and would be 46 years old and 126 days upon taking office.

Read more about Julian Castro’s campaign.


Miramar, Florida Mayor Wayne Messam is 44 years old. He would be 45 years and 228 days old upon taking office.


Rep. Tim Ryan is 45. He would be 47 years and 188 days old upon assuming the presidency.

Read more about Tim Ryan’s campaign.


Former. Rep. Beto O’Rourke of Texas is currently 46, and would be 48 years old and 116 days old on Inauguration Day.

Scott Eisen/Getty ImagesFormer Rep. Beto O’Rourke

Read more about Beto O’Rourke’s campaign.


Sen. Cory Booker turns 50 on April 27. If elected, he would be 51 years old and 268 days when assuming office.

Spencer Platt/Getty ImagesSen. Cory Booker

Read more about Cory Booker’s campaign.


Sen. Kirsten Gillibrand of New York is 52 years old. She would be 54 years and 42 days old upon taking office.

Read more about Kirsten Gillibrand’s campaign.


Sen. Kamala Harris is 54, and would be 56 years and 92 days old upon taking office.

Read more about Kamala Harris’ campaign.


Rep. John Delaney is 56, and would be 57 years and 249 days old when taking office.

Read more about John Delaney’s campaign.


Sen. Amy Klobuchar is 58. She would be 60 years old and 240 days old on Inauguration Day.

Read more about Amy Klobuchar’s campaign.


Marianne Williamson is 66 years old, and would be 68 years and 196 days upon taking office.

Tibrina Hobson/Getty ImagesMarianne Williamson

Read more about Marianne Williamson’s campaign.


Gov. John Hickenlooper is also 66. He will be 68 years and 348 days on Inauguration Day.

Danny Matson/Getty Images for SXSWFormer Governor John Hickenlooper

Read more about John Hickenlooper’s campaign.


Gov. Jay Inslee is 68 years old, and would be 69 years and 346 days old when assuming office.

Read more about Jay Inslee’s campaign.


Sen. Elizabeth Warren is currently 69. She would be 71 years and 212 days upon taking office in 2021.

Sergio Flores/Getty ImagesDemocratic presidential candidate Sen. Elizabeth Warren

Read more about Elizabeth Warren’s campaign.


Former Vice President Joe Biden is 76 now, and would be 78 years and 61 days old on Inauguration Day 2021.

(AP Photo/Frank Franklin II)Former Vice President Joe Biden

Read more about Joe Biden’s campaign.


Sen. Bernie Sanders is currently 77. He would be 79 years and 134 days old upon assuming office.

Hollis Johnson/Business InsiderSen. Bernie Sanders

Read more about Bernie Sanders’ campaign.

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.