Reorganization
In 1924, the Union Party joined with dissident members of the Republican Party to form the Alianza ("Alliance"). This group generally supported autonomy for Puerto Rico. In 1932, the Alianza reconstituted itself as the Liberal Party and formally endorsed independence. The Alianza's more conservative, pro-statehood, faction broke off and joined with the Republicans to form the Republican Union.
Read more about this topic: Union Of Puerto Rico