Twenty-second Amendment to the United States Constitution
Some argue that the 22nd Amendment and 12th Amendment bar any two-term president from later serving as vice president as well as from succeeding to the presidency from any point in the presidential line of succession. Others contend that the original intent of the 12th Amendment concerns qualification for "service" (age, residence, and citizenship), while the 22nd Amendment, concerns qualifications for "election", and thus (strictly applying the text) a former two-term president is still eligible to "serve" as vice president (neither amendment restricts the number of times an individual can be elected to the vice presidency), and then succeed to the presidency to serve out the balance of the term (though prohibited from running for election to an additional term).
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."