During certain eras such as the Stalin era, power was in the hands of only one person. However, later on the central board of the communist party had control over everything in the country.
To a matsayin misali lokacin mulkin Stalin, kusan ana iya cewa mutum guda ne ma yake mulkin, amma zamunnan da suka biyo baya, wannan kwamiti da kungiya ta asali ta jam'iyyar kwaminis din su ne suke mulki.