1942 Chilean presidential election

The election was held using the absolute majority system, under which a candidate had to receive over 50% of the popular vote to be elected. If no candidate received over 50% of the vote, both houses of the National Congress would come together to vote on the two candidates who received the most votes.[2]

In 1941, due to his rapidly escalating illness, President Pedro Aguirre Cerda appointed his Minister of the Interior, Jerónimo Méndez as vice-president and died soon after, on November 25, 1941. Aguirre Cerda's two natural successors were Juan Antonio Ríos and Gabriel González Videla, both members of his Radical Party, while the right-wing coalition was united by a common candidate, former President Carlos Ibáñez del Campo, who had the support of the Conservative party, Liberal Party, National Socialist Party, Popular Socialist Vanguard and the majority of the independents.

Ríos started to campaign early but two days before the internal primaries of his party, Gabriel González Videla (the ambassador to Brazil) returned to Chile to dispute him the nomination. The results were too close to call, so a tribunal of honor (electoral commission) was constituted, and Juan Antonio Ríos was finally proclaimed the candidate of a left-wing coalition of parties, the Democratic Alliance, which was formed by the Radical Party, the Socialist Party, the Communist Party, the Democratic Party and the Workers' Socialist Party.