Final answer:
Warren G. Harding's 'Return to Normalcy' agenda appealed to many voters in the 1920 election because Americans wanted to focus on domestic economic issues and leave the hardships of the postwar era behind.
Step-by-step explanation:
Warren G. Harding's 'Return to Normalcy' agenda appealed to many voters in the 1920 election because the American public wanted to concentrate on domestic economic issues. The country had experienced economic uncertainty, shortages of goods, racial tensions, and the impact of the flu pandemic. Americans were exhausted and sought a break from the difficult postwar experiences. Harding promised a government that would leave them alone, keep taxes low, and limit social progressivism and international involvement.