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).
Tiburcio Carías Andino
The method chosen by Carías to extend his term of office was to call a constituent assembly that would write a new constitution and select the individual to serve for the first presidential term under that document. Except for the president's desire to perpetuate himself in office, there seemed little reason to alter the nation's basic charter. Earlier constituent assemblies had written thirteen constitutions (only ten of which had entered into force), and the latest had been adopted in 1924. The handpicked Constituent Assembly of 1936 incorporated thirty of the articles of the 1924 document into the 1936 constitution. The major changes were the elimination of the prohibition on immediate reelection of a president and vice president and the extension of the presidential term from four to six years. Other changes included restoration of the death penalty, reductions in the powers of the legislature, and denial of citizenship and therefore the right to vote to women. Finally, the new constitution included an article specifying that the incumbent president and vice president would remain in office until 1943. But Carías, by then a virtual dictator, wanted even more, so in 1939 the legislature, now completely controlled by the National Party, obediently extended his term in office by another six years (to 1949).