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Foreign Policy

Senate rejects ratification of the Treaty of Versailles

On March 19, 1920 the U.S. Senate failed to ratify the Treaty of Versailles, falling short of the two-thirds majority needed to approve the treaty (including the Lodge reservations).

The defeat kept the United States out of the League of Nations and marked a decisive turn toward postwar U.S. isolationism while profoundly shaping Woodrow Wilson’s legacy and American foreign policy.

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