Answer:
18 years old
Step-by-step explanation:
People having 18 years old are eligible to vote in federal pubs, they need to be U.S. citizens. Citizenship generally is attained by birth or naturalization. The vote is granted only to those who meet the above requirements.
Sometimes you are able to vote if being abroad in a diplomatic representation like Embassy or Consulates. In other cases, if you register to vote and not show up during the rolls, there are some other methods to cast a provisional vote that will be counted.
The right to vote to a woman was given in the US, 1920 . and to racial minorities in 1965. In this way, the Us was one of the first modern states to become inclusive with a broad population considered active in the democracy building.