cabinet, formed in April 1951 was another Masyumi-PNI coalition. Despite this, the PNI leadership helped bring it down when its policies prioritized economic stability over radical nationalism. The Wilopo Cabinet, in office from April 1952 – June 1953, was headed by the PNI's Wilopo. Despite this, support from the PNI rank and file was lukewarm, as the party grew closer to Communist Party of Indonesia (PKI) and more nationalist and radical. All four PNI ministers were accused of poor party discipline, and were criticised at the sixth PNI congress for their part in cabinet policies. Eventually, internal conflicts, particularly between the PNI and Masyumi, brought the cabinet down. It was replaced by another PNI-led cabinet, with Ali Sastroamidjojo as prime minister. As the 1955 elections neared, the PNI leadership realized that it would need to raise funds and increase party membership. It took advantage of its cabinet positions to charge levies in return for permits and government loans. However, the increase in membership weakened the position of the highly centralized party leadership. Campaigning on a program that prioritized above all nationalism, together with a strong centralized government and secularism, the PNI came first in the 1955 Indonesian general election, with a 22.3% share of the vote. It was followed by Masyumi, the Nahdlatul Ulama (NU) and the PKI. The PNI thereby gained 57 of the 257 seats in parliament. Many of these new members of parliament were local branch leaders, who were replaced by new recruits. The cabinet resulting from the election was a coalition of the PNI, Masyumi and the NU, with Ali Sastroamidjojo returning to the post of prime minister. At the eighth party congress, shifts within the membership led to a narrow win for the conservative Suwirjo as party chairman. The same congress saw major changes to the organization of the party, with the establishment of a decentralized and inclusive Congress Working Committee to set party policy. In 1956, tired of national political instability, President Sukarno called for the parties to be "buried" and spoke of his concept of "guided democracy". In the following year, as details of Sukarno's concept emerged, there were demonstrations in support of it. In March 1957, the regional Permesta rebellion broke out, and Army Chief of staff Naution proposed Sukarno declare martial law nationwide. Sukarno agreed, and on 14 March the cabinet resigned, and martial law came into force, thus ending parliamentary