The November 2020 presidential election will be the twenty-sixth in which American women will have been eligible to vote. The Nineteenth Amendment to the US Constitution, adopted a century ago this August, entitled women to cast ballots-for many in their first election-on November 2, 1920. Before 1920, 15 states had granted women equal voting rights, and an additional 24 states had granted partial voting rights (Keyssar 2009;Lott and Kenny 1999). The scope of partial voting rights varied widely across states and municipalities, covering local school board elections to the national presidential election. But a constitutional guarantee that sex could not be used as a basis of exclusion from the vote represented the crowning achievement-the "sacred right to the elective franchise," as laid out in the Declaration of Sentiments at the celebrated Seneca Falls convention of 1848.But paradoxically, there was a great deal of speculation back in 1920 that women might not have much political influence even with the right to vote. As the story went, women would be inclined to "duplicate" the male vote, if they turned out at the polls at all. Some argued that any other outcome would be too disruptive to household harmony and also disrespectful of the "separate spheres" that men and women had historically occupied. As late as 1940, pollster George Gallup mused, "How will [women] vote on election day? Just exactly as they were told the