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The article analyzes the legacy of Professor E. I. Kozlova in terms of fundamental research of the concept and content of the institute of democracy. The content of the institute of democracy is the subject of research by many constitutionalists of different times, since this institution occupies one of the leading places in constitutional law. The constitutional principle of democracy underlies the system of organization of public power, and is also fundamental to the functioning of a democratic state. Special attention is paid to approaches in understanding the subject of democracy in both a socialist and a democratic state. Based on the study of the works of E. I. Kozlova, it is noted that there are similar trends in the transformation of the institution of democracy in the socialist state (USSR) and currently (Russian Federation).
A. N. Ponomarenko (Wed,) studied this question.