 In 1956 he became a Member of the Indonesian Parliament on behalf of the (IPKI), and was considered a representative of the foreign minority in Indonesia.As a parliamentarian he repeatedly posed uncomfortable questions to the Sukarno Government, on such issues as the unequal division of national resources and income between the central island of Java and the outlying islands.He was apparently one of the "obstructing parliamentarians" whom Sukarno found annoying and whose activity was among the factors which finally led the President to replace the Western-type parliamentary system with "guided democracy" in 1959.