1920 United States presidential election

Presidential elections were held in the United States on November 2, 1920. The Republican ticket of senator Warren G. Harding of Ohio and governor Calvin Coolidge of Massachusetts defeated the Democratic ticket of governor James M. Cox of Ohio and assistant secretary Franklin D. Roosevelt of New York. It was the first election held after the end of the First World War, and the first election after the ratification of the Nineteenth Amendment gave nationwide suffrage to women.

Incumbent president Woodrow Wilson, a Democrat who had served since 1913, privately hoped for a third term despite severe physical and mental disabilities from a stroke, but he had very little support. Former president Theodore Roosevelt had been the frontrunner for the Republican nomination, but he died in 1919 without leaving an obvious heir to his progressive legacy. The major parties turned to little-known dark horse candidates from the state of Ohio, a populous swing state with many electoral votes. Cox won on the 44th ballot at the 1920 Democratic National Convention, defeating William Gibbs McAdoo (Wilson's son-in-law), A. Mitchell Palmer, and several other candidates. Harding emerged as a compromise candidate between the conservative and progressive wings of the Republican party, and he clinched his nomination on the tenth ballot at the 1920 Republican National Convention. The election was dominated by the American social and political environment in the aftermath of World War I, which was marked by a hostile response to certain aspects of Wilson's foreign policy and a massive reaction against the reformist zeal of the Progressive Era. The wartime economic boom had collapsed and the country was deep in a recession. Wilson's advocacy for America's entry into the League of Nations, in the face of a return to non-interventionist opinion, challenged his effectiveness as president, and there were wars and revolutions overseas. At home, the year 1919 was marked by major strikes in the meatpacking and steel industries and large-scale race riots in Chicago and other cities. Additionally, the September 16, 1920, Wall Street bombing aroused fears of radicals and terrorists. The Irish Catholic and German communities were outraged at Wilson's perceived support of their traditional enemy, Great Britain. Harding all but ignored Cox in the race, and essentially campaigned against Wilson by calling for a "return to normalcy". Harding won a landslide victory, sweeping every state outside of the South and becoming the first Republican since the end of Reconstruction to win a former state of the Confederacy: Tennessee. Harding's victory margin of 26 percent in the popular vote remains the largest popular-vote percentage margin ever since widespread popular elections began in the 1820s. (However, subsequent winning candidates in 1936, 1964 and 1972 exceeded his share of the popular vote.) Cox won just 34 percent of the popular vote, and Socialist Eugene V. Debs won 3 percent, despite being in prison at the time. It was the first election in which women had the right to vote in all 48 states, which caused the total popular vote to increase dramatically, from 18 million in 1916 to 26 million in 1920. It was the third presidential election in which both major party candidates were registered in the same home state (the others have been in 1860, 1904, 1940, 1944, and 2016). Coincidentally, the election was held on Harding's 55th birthday. Both major-party vice-presidential nominees would later succeed to the presidency: Calvin Coolidge (Republican) upon Harding's death in 1923 and Franklin D. Roosevelt (Democratic) after defeating Republican president Herbert Hoover in 1932.