Background to Presidential Elections

In the US we hold Presidential elections every 4 years.
A president can be in office for only 2 terms (8years) if reelected.
To become president you must1 be at least 35 years old and a citizen born in the United States, Guam, Puerto Rico or the U.S. Virgin Islands (or to American parents abroad). You also need to have been a U.S. resident for at least 14 years.