After the military coup of May 1926, the Socialist Party was the only tolerated political party. Initially the party adopted a passive tactic towards the military dictatorship. The party sharply distanced itself from the republic uprising in February 1927 (which had sought to reinstate the 1911 constitution). The national conference of 1930 decided that the party should openly cooperate with the government. One of the main leaders of the party at the time, Ramado Curto, was commissioned by the government to formulate a labour code. From 1930 he worked with the reformist trade unions in the corporativist National Economic Committee. After the establishment of "Estado Novo" by António de Oliveira Salazar in March 1933 the party was banned. The party responded by dissolving itself.