The Party adhered to the Popular Front, and Pestaña was elected to the Cortes on a Front platform in 1936, as one of the two Party representatives (he had won a seat in Cádiz).
O partido adheriuse á Fronte Popular, e Pestaña foi elixido para as Cortes Xerais nunha plataforma de fronte en 1936, como un dos dous representantes do partido (obtivo un escano por Cádiz).