In its XXV Congress that took place from 31 July to 5 August 1971, the Radical Party confirmed the left-wing line it had taken already in 1967. The congress declared that the Radicals discard
bourgeois democracy as an instrument of capitalist domination and the Radical Party is now a
socialist party, that subscribes to
class struggle and
historical materialism. Disquieted by the Marxist influence, on 3 August, the Senators Bossay, Baltra, Acuña, Juliet and Aguirre and deputies Ibáñez, Magalhaes, Naudón, Basso, Clavel, Sharpe and Muñoz Barra left the Radical Party. They founded a new party of radicals with more moderate political views, though paradoxically called Partido Izquierda Radical – Party of Radical Left. The new party initially remained part of the
Unidad Popular. In March 1972, Allende and the Christian Democrats tried to forge a compromise. The Radical Left Party represented the UP coalition in negotiations. The radical minister of justice
Manuel Sanhueza held talks with the Christian Democratic Party over regulations of nationalized firms, but ultimately failed, as the socialist minister of economy
Pedro Vuskovic boycotted the negotiations and carried out legally dubious
expropriations. As a result, the Radical Left quit the UP coalition. The party then participated in the 1973 election within the centre-right opposition bloc
CODE. In 1983, it was a founder of the
Democratic Alliance. The party split in 1988. One faction called for a Yes vote on
the referendum (for Pinochet), and formed a new ephemeral
Chilean Social Democrat Party that soon merged with the
Progressive Union of the Centrist Centre. The other faction called for a No vote and joined the opposition cartel
Concertación de Partidos por la Democracia, and eventually merged with the Radical Party to form the
Social Democrat Radical Party. == Presidential candidates ==