| Age | President | % Correct |
|---|---|---|
| 78 | Joe Biden | 100%
|
| 70 | Donald Trump | 93%
|
| 69 | Ronald Reagan | 88%
|
| 64 | George H. W. Bush | 78%
|
| 61 | John Adams | 67%
|
| 62 | Dwight D. Eisenhower | 63%
|
| 61 | Andrew Jackson | 58%
|
| 68 | William Henry Harrison | 52%
|
| 64 | Zachary Taylor | 43%
|
| 65 | James Buchanan | 38%
|