in spite of his support for a united yugoslavia, trumbić opposed the 1921 constitution over his belief that it was too centralized and allowed serb hegemony over yugoslavia. trumbić was one of 35 representatives to vote against the constitution amid a wide boycott of the national assembly by opposition parties. trumbić grew steadily disillusioned with the yugoslav government over time which he saw as serb-dominated. he was elected for the last time in the 1927 elections on the list of the croatian bloc representing zagreb.