On 26 October 1932, Pedro founded the Socialist Party of the Philippines when the Partido Komunista ng Pilipinas (PKP) was outlawed by the Supreme Court. Two years later, together with his assistants Agapito del Rosario, Luis Taruc, Lino Dizon and others, he organized the Aguman ding Talapagobra ning Pilipinas (ATP) into the Aguman ding Maldang Talapagobra (AMT), similar to the general workers’ unions in Spain, Mexico and France, which advocated the expropriation of landed estates and friar lands, farmers’ cooperative stores and the upliftment of peasants’ living conditions. On November 7, 1938, during the anniversary of the Russian Bolshevik Revolution, members of the PKP and the PSP held a convention at the Manila Grand Opera House where they declared their merger as the Communist Party of the Philippines. Crisanto Evangelista was elected president, Pedro Abad Santos Vice President, Guillermo Capadocia secretary general.