By 1970 , many groups from opposite sides of the political spectrum had come to support Perón , from the left-wing and Catholic Montoneros to the fascist-leaning and strongly antisemitic Tacuara Nationalist Movement , one of Argentina 's first guerrilla movements . In March 1973 , Héctor José Cámpora , who had been named as Perón 's personal delegate , was elected President of Argentina , paving the way for the return of Perón from Spain . A few months after Perón 's return and the subsequent Ezeiza massacre during which the Peronist Left and Right violently clashed , new elections were held in September with Perón elected president and his third wife Isabel vice president
Ezeiza massacre
Ezeiza massacre
Peronism