The campaign Americans everywhere into talking about Mr.Carter's "Weakening performances, including doing nothing to achieve the release of Americans hostages held in Iran." Mr.Carter was diminishing defense spending at the same time the Soviets were building an estimated 13,500 tanks, 6,300 aircrafts, 900 ballistic missiles and 1200 intercontinental missiles
(So basically this is the answer: The Iran hostage crisis helped Ronald Reagan with the presidency.)