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.
Chief Justice of the United States
The chief justice, like all federal judges, is nominated by the President and confirmed to office by the U.S. Senate. Article III, Section 1 of the Constitution specifies that they "shall hold their Offices during good Behavior". This language means that the appointments are effectively for life, and that, once in office, justices' tenure ends only when they die, retire, resign, or are removed from office through the impeachment process. Since 1789, 15 presidents have made a total of 22 official nominations to the position.