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).
2020 United States presidential election
Article Two of the United States Constitution states that for a person to serve as President of the United States the individual must be a natural-born citizen of the United States, at least 35 years old and a United States resident for at least 14 years. Candidates for the presidency typically seek the nomination of one of the various political parties of the United States, in which case each party develops a method (such as a primary election) to choose the candidate the party deems best suited to run for the position. The primary elections are usually indirect elections where voters cast ballots for a slate of party delegates pledged to a particular candidate. The party's delegates then officially nominate a candidate to run on the party's behalf. The nominee then personally chooses a vice presidential running mate to form that party's presidential ticket (with the exception of the Libertarian Party, which nominates its vice presidential candidate by delegate vote regardless of the nominee's preference). The general election in November is also an indirect election, where voters cast ballots for a slate of members of the Electoral College; these electors then directly elect the President and Vice President.