Partido Nacional Rumano
In 1906, Vaida-Voevod joined a group of Romanian nationalists in the Budapest Parliament (the Romanian National Party of Transylvania and Banat), becoming an important opponent of the Hungarian governmental policy of Magyarization, and fought for the right of Transylvania to self-determination. Disappointed by the Austrian cause after Franz Ferdinand's assassination in Sarajevo, and turned towards an advocacy of Transylvania's union with Romania.