Woodrow Wilson put his life into the Treaty of Versailles (literally). The United States never signed it. What were the challenges of the treaty for the United States and why did the Senate not agree...

Woodrow Wilson put his life into the Treaty of Versailles (literally). The United States never signed it. What were the challenges of the treaty for the United States and why did the Senate not agree to it? Could Wilson done something differently to assure that the country was fully behind it