 On the very day of the Alba Iulia Assembly, he was elected general secretary of the Social Democratic Party of Transylvania and Banat.Later in the same month, after a strike was worker's rally broken up in Bucharest and the newly created Socialist Party of Romania (PS) repressed, Flueraș and Jumanca, urged by Constantin Titel Petrescu, met with King Ferdinand I and Premier Ion I. C. Brătianu, persuading them to grant concessions to the labor movement.In 1920, he was one of Romania's envoys to the Paris Peace Conference.