Single-party republic

Main article: one-party system
Karl Marx argued that social classes and had interests that existing governments representing the interests of the ruling class, and that sooner or later these governments would be overthrown by the proletarian class.
When Marx’s predictions were met and the new Socialist Republics appeared, these were proclaimed as the most direct inheritors of the ideals of the Enlightenment.
When these appeared Socialist Republics had to face a serious problem, most of the proletariat lacked the interest or the experience of government to the republican ideals that socialists could be implemented. Therefore, the socialist government structures eventually, in practice very pyramidal.