The single voice in Dutch politics to clearly and outspokenly support the "De Zeven Provinciën" mutineers was the left-communist Revolutionary Socialist Party (Dutch: "Revolutionair Socialistische Partij"), whose leader Henk Sneevliet had been among the founders of what was to become the Indonesian Communist Party, and who was sentenced to five months prison term for hailing the mutiny as "the beginning of the anti-colonial revolution". Sneevliet's outspoken position was used in the aforementioned right-wing campaign. However, for its constituency – mainly left-leaning intellectuals, especially in the more cosmopolitan capital Amsterdam – the RSP raised a large and effective campaign with such slogans as: "From the Cell to Parliament", "Make Sneevliet the public prosecutor in the Second Chamber" and "I accuse" (a clear reference to Émile Zola's ""J'accuse""). The campaign worked and the party won a single parliamentary seat, the only such success in its history, and thus got Sneevliet released from prison.