How old is Marco Rubio?

Sen. Marco Rubio (R-FL), who announced his presidential bid today, would be among the youngest people ever elected to the office: 45 as of January 20, 2017.

That'd make him the third-youngest president ever: Teddy Roosevelt was 42 (although just a month or so shy of his birthday) when William McKinley was assassinated and he ascended to the presidency, and John F. Kennedy, the youngest person ever elected president, was 43 upon taking office. Rubio would edge out Bill Clinton and Ulysses S. Grant (both 46), Barack Obama and Grover Cleveland (both 47), and Franklin Pierce (48).

Here's how he stacks up to other declared and likely candidates in the race when it comes to age upon taking office.

• Bobby Jindal: 45
• Marco Rubio: 45
• Ted Cruz: 46
• Scott Walker: 49
• Martin O'Malley: 54
• Rand Paul: 54
• Chris Christie: 54
• Rick Santorum: 58
• Mike Huckabee: 61
• Lindsey Graham: 61
• Carly Fiorina: 62
• Lincoln Chafee: 63
• Jeb Bush: 63
• Ben Carson: 65
• Rick Perry: 66
• Hillary Clinton: 69
• Donald Trump: 70
• Jim Webb: 70
• George Pataki: 71
• Joe Biden: 74
• Bernie Sanders: 75

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