The Calderónist government of Picado faced fierce opposition during that tense decade. The opposition candidate in the 1948 elections was Otilio Ulate Blanco. Ulate was the presumed winner of the elections, although with mutual accusations of voter fraud, which caused rejection of the results by the ruling party and finally the outbreak of a revolution. The rebellious side, led by José Figueres and Ulate (and in which many Italians and Germans served, for obvious reasons opposed to Calderón) was the victor. At first, the Jewish community was seen as close to the regime and the San José Synagogue was burned, however, Figueres promised to the Jewish community not to tolerate anti-Semitic attacks.