Masyumi Party
Shortly after his return from China, on 30 October 1956, Sukarno spoke of his "konsepsi" (conception) of a new system of government. Two days earlier he had called for the political parties to be abolished. Initially the parties were opposed to the idea, but once it became clear that they would not need to be abolished, the Indonesian Communist Party (PKI) threw its support behind Sukarno. As well as the PKI, the Indonesian National Party (PNI) supported Sukarno, while the Islamist Masyumi Party and the Socialist Party of Indonesia opposed the plan. There were demonstrations in support of it.