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The PSB, PCdoB, and PC are smaller left-wing parties which have regularly formed a common electoral platform with the PT. The PDT is the inheritor of the Brazilian left-populist tradition, led by João Goulart, who was overthrown by the military coup of 1964. On a number of occasions the populist PDT has reached electoral agreements with the PT, especially pledging mutual support in any second round run-off. Thus in 1998 the PDT helped secure victory for the PT in the state government elections in Rio Grande do Sul. The PMDB, once the main bourgeois opposition to the military dictatorship, is now a part of the governing coalition. However, with the popularity of the Cardoso government in sharp decline, some figures in the PMDB have come out with direct criticisms of government policies.