Twenty-second Amendment to the United States Constitution
The amendment prohibits any individual who has been elected president twice from being elected again. Under the amendment, an individual who fills an unexpired presidential term lasting greater than two years is also prohibited from winning election as president more than once. Scholars debate whether the amendment prohibits affected individuals from succeeding to the presidency under any circumstances or whether it only applies to presidential elections.
Kamala Harris 2020 presidential campaign
If elected, Harris would be only the fourth sitting Senator elected president, the only others being Warren G. Harding, John F. Kennedy, and Barack Obama. Harris would also be the third president to have served as a state attorney general, the others being Martin van Buren (New York Attorney General, 1815-1819) and Bill Clinton (Arkansas AG, 1977-1979). If elected, Harris would be the second consecutive Democratic president to be elected as a freshman Senator, the first being Barack Obama.