WHY DID U.S. CONGRESS REFUSE TO RATIFY THE TREATY ENDING World War 1?

The U.S. Congress refused to ratify the Treaty of Versailles primarily due to concerns over the League of Nations, which many senators believed would entangle the United States in foreign conflicts and undermine national sovereignty. Additionally, isolationist sentiment was strong in the post-war period, with many lawmakers advocating for a return to a policy of non-intervention. Political divisions, particularly between President Woodrow Wilson and Senate Republicans, also played a significant role in the treaty's defeat. Ultimately, these factors combined to prevent ratification.