How old does someone have to be to be elected president?

You've got to be at least 35 years old

Explanation:

To become president: You've got to be a "natural born" citizen of the United States. You've got to be at least 35 years old. And you're required to have lived within the United States for at least 14 years.

the  equal rights amendment  (era) states: "equality  of  rights  under the law shall not be denied or abridged by the united states or by any state on account of sex." congress first introduced the era in 1923, but the campaign for ratification took off in the 1960s during the  civil rightsmovement.