Twenty-second Amendment to the United States Constitution
As worded, the primary focus of the 22nd Amendment is on limiting individuals twice elected to the presidency from being elected again. Due to this, several issues could be raised regarding the amendment's meaning and application, especially in relation to the 12th Amendment, ratified in 1804, which states, "But no person constitutionally ineligible to the office of President shall be eligible to that of Vice-President of the United States". While it is clear that under the 12th Amendment the original constitutional qualifications of age, citizenship, and residency apply to both the president and vice president, it is unclear whether someone who is ineligible to be elected president could be elected vice president. Because of this apparent ambiguity, there may be a loophole in the 22nd Amendment whereby a two-term former-president could be elected vice president and then succeed to the presidency as a result of the incumbent's death, resignation, or removal from office (or even succeed to the presidency from some other stated office in the presidential line of succession).
President of Colombia
Already the Constitution of 1991 limited presidents to a single term. However, on 24 November 2005, the Colombian Congress introduced the Electoral Guarantees Law (Ley de Garantias Electorales), which modified Article 152, of the Colombian Constitution of 1991 and allowed a president to run for a second term. The President or Vice President running for re-election must officially tell in the National Electoral Council and guarantee a fair competition for the other contenders. Participation of acting officials in political proselytism was standardized. If the president or vice president are not running for office, they are prohibited from participating on political proselytism. If one or both are participating, they can engage in political activity only four months before the primary elections. Also, if the president and/or vice president is running for office, he may participate in their political party's selection mechanism to postulate candidates. In 2010, the Constitutional Court of Colombia threw out a planned referendum to allow presidents to run for three consecutive terms. It ruled that Colombian presidents can only serve two terms, even if they are nonconsecutive. In 2015, a constitutional amendment repealed the 2004 changes and reverted to the original one-term limit.