The Twelfth Amendment to the United States Constitution (1804) provides the procedure by which the president and vice president are elected; electors vote separately for each office. Previously, electors cast two votes for president, and the winner and runner up became president and vice-president respectively. The appointment of electors is a matter for each state's legislature to determine; in 1872 and in every presidential election since 1880, all states have used a popular vote to do so.
The 1824 election was the first in which the popular vote was first fully recorded and reported. Since then, 19 presidential elections have occurred in which a candidate was elected or reelected without gaining a majority of the popular vote.[4] Since the 1988 election, the popular vote of presidential elections was decided by single-digit margins, the longest since states began popularly electing presidents in the 1820s.[5]
List
The table below is a list of United States presidential elections by popular vote margin. It is sorted to display elections by their presidential term / year of election, name, margin by percentage in popular vote, popular vote, margin in popular vote by number, and the runner up in the Electoral College.
^ abWashington ran unopposed and was unanimously elected in both elections; John Adams received the majority of electors' second votes and became vice-president.
^Jefferson became vice-president, as both Adams's and Jefferson's electors split over their choices for vice-president.
^Jefferson and Burr ran on the same ticket; Jefferson's main election rival in the 1800 election was incumbent president and Federalist candidate, John Adams. Due to the Democratic-Republicans failing to arrange for a different candidate to receive what was Burr's 73rd electoral vote, the election was decided by the House, who eventually elected Jefferson on the 36th ballot. The Twelfth Amendment was later enacted to prevent a recurrence of the issue.
^While commonly labeled as the Federalist candidate, Clinton ran as a Democratic-Republican and was not nominated by the Federalist party itself, the latter simply deciding not to field a candidate. This did not prevent endorsements from state Federalist parties (such as in Pennsylvania), but he received endorsements from state Democratic-Republican parties (such as in New York) as well.
^The 1820 election took place at the height of the Era of Good Feelings; Monroe did not face serious opposition, though 16% of the popular vote went towards unpledged Federalist electors. Adams's only electoral vote came from a faithless elector.
^Jackson won a plurality of electoral votes – 99 compared to Adams's 84 – but lost due to Adams securing a majority of state delegations in the contingent election.
^Breckinridge was the runner up in the electoral vote; Stephen A. Douglas was the runner up in the popular vote.
^The initial Democratic-backed candidate, Horace Greeley (Lib. Rep.), died between the popular election and the meeting of electors; his electoral college votes scattered, with Hendricks gaining 42 of the 66 electors previously committed to Greeley.