President of Argentina
Under the 1994 constitutional amendment, the President serves for four years, with a possibility of immediate reelection for one more term. However, unlike the President of the United States, in Argentina, a person may be reelected again after serving for two terms and staying out of office for the following term. So after serving for two consecutive periods, the president is not allowed to run for a third consecutive one, but may return for the two following elections and so on. There is no limit for a person to be a candidate if he or she does not win the elections.
Living presidents of the United States
This article shows the variation in the number of living presidents of the United States from the inauguration of the first president of the United States in 1789 until the present. The following table includes all persons who have taken the presidential oath of office. (Persons who served as Acting President of the United States or as President of the Continental Congress are not included.) Currently, in addition to the incumbent, Donald Trump, there are four living former presidents: Jimmy Carter (1977–1981), Bill Clinton (1993–2001), George W. Bush (2001–2009), and Barack Obama (2009–2017).