Final answer:
Warren G. Harding promised America a return to normalcy during his presidency in response to the challenges the nation was facing post-World War I.
Explanation:
Warren G. Harding promised America a return to normalcy during his presidency. Harding believed that after the turmoil of World War I and other challenges, America needed a period of stability and healing. This promise was meant to bring back a sense of normality to the nation and address the various crises it was facing at the time.
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