How old do you have to be to run for President in America?

There is no legal maximum age.

The top ten oldest major-party presidential nominees have been:

1. 1984 - 73 yrs. - Ronald Reagan (Republican Party; won)
   
2. 1996 - 73 yrs. - Bob Dole (Republican Party; lost)
   
3. 2008 - 72 yrs. - John McCain (Republican Party; lost)
   
4. 1980 - 69 yrs. - Ronald Reagan (Republican Party; won)
   
5. 1992 - 68 yrs. - George H. W. Bush (Republican Party; lost)
   
6. 1840 - 67 yrs. - William Henry Harrison (Whig Party; won)
   
7. 1844 - 67 yrs. - Henry Clay (Whig Party; lost)
   
8. 1852 - 66 yrs. - Winfield Scott (Whig Party; lost)
   
9. 1848 - 66 yrs. - Lewis Cass (Democratic Party; lost)
   
10. 1956 - 66 yrs. - Dwight D. Eisenhower (Republican Party; won)