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).
Barack Obama's farewell address
In the 2016 presidential election, Obama was ineligible to seek reelection to a third term due to the restrictions of the Twenty-second Amendment. In June 2016, Obama endorsed his former Secretary of State, Hillary Clinton, to succeed him as president. He addressed the 2016 Democratic National Convention on July 27 in support of Clinton as the Democratic Party's nominee, and continued to campaign for her throughout the 2016 general election campaign season. However, Hillary Clinton would unexpectedly lose the general election to Republican nominee Donald Trump on November 8, after failing to receive enough votes in the Electoral College, despite receiving a plurality of the national popular vote. The Democratic Party would no longer control the presidency once Trump was inaugurated on January 20, 2017, and they did not have a majority of seats in either chamber of the United States Congress, and in the state legislatures and governorships. President Obama's approval ratings were nearly at 60 percent at the time of his farewell speech.