Warren G. Harding won the presidential election of 1920 with 60.3% of the popular vote. This was the first time women were allowed to vote in all states, so voter turnout was unusually high as well.
The strategy Harding adopted was promising a "return to normalcy." This was a promise to return to the life that Americans enjoyed before WWI. He turned away from heroic deeds and revolution, and promised healing, restoration and serenity. It was an extremely popular proposal.