Who opposed the Treaty of Versailles?
Isolationists Those who opposed the League of Nations
There was a good deal of opposition to the Treaty of Versailles on all sides. The British chastised the French for being too vindictive, while the French marshal felt it was too lenient. There was fierce opposition to the treaty in the United States, and it was not ratified. Germany, who had been ready to accept the lenient Fourteen Points were devastated by the Treaty of Versailles.
It was led by Idaho Senator William Borah. The irreconcilables opposed the 'Treaty of Versailles' of 1919 at the end of World War I. The irreconcilables consisted of about 12 - 16 Senators (both Democrat and Republicans) who opposed the treaty. They succeeded and the United States never ratified the 'Treaty of Versailles' and the United States never joined the 'League of Nations'.