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).
Term limits in the United States
In the 1780s, about half the states provided term limits for governors. The Constitutional convention of 1787 discussed the issue and decided not to institute presidential term limits. "The matter was fairly discussed in the Convention," Washington wrote in 1788, "and to my full convictions ... I can see no propriety in precluding ourselves from the services of any man, who on some great emergency shall be deemed universally, most capable of serving the Public", even after serving two terms. The Constitution, Washington explained, retained sufficient checks against political corruption and stagnant leadership without a presidential term limits provision. Jefferson, however, strongly endorsed a policy of term limits. He rejected calls from supporters that he run for a third term in 1808, telling several state legislatures in 1807-1808 that he needed to support "the sound precedent set by [his] illustrious predecessor."