The first U.S. president for whom women could vote in a federal election was Warren G. Harding in the 1920 presidential election. This election was the first in American history where women had the right to vote nationwide, following the ratification of the 19th Amendment to the U.S. Constitution in August 1920, which guaranteed women the right to vote
. The 19th Amendment, passed by Congress in 1919 and ratified by the required three-fourths of states by August 18, 1920, prohibited denying the right to vote on the basis of sex, thus enfranchising millions of women across the country for the first time in a presidential election held on November 2, 1920
. Warren G. Harding, the Republican candidate, won that election, making him the first president elected by a voting population that included women nationwide
