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).
Donald Trump 2016 presidential campaign
In 2013, Trump researched a possible run for President of the United States in 2016. In October 2013, some New York Republicans, including Joseph Borelli and Carl Paladino who later served as New York State Co-Chairmen for the presidential campaign, suggested Trump should instead run for governor of the state in 2014. In February 2015, Trump did not renew his television contract for "The Apprentice", which raised speculation of his candidacy for President of the United States in 2016. Later that year, Trump was a featured speaker at the Conservative Political Action Conference.