The present study considers the diachronic changes that took place in Soviet political discourse as reflected in six selections of Pravda editorials from the 1920s through the 1950s, as well as slogans and headlines in that newspaper from 1917 through 1933. The principal goal of analyses conducted on various levels is to identify and investigate a number of tendencies demonstrating the gradual transformation of the language of revolution into totalitarian. The analysis identifies a number of stable elements presented throughout the period under study, such as the self - other opposition and references to the classics of Marxism-Leninism. At the same time, noted on all levels are changes illustrating the process by which the language of revolution was gradually transformed into totalitarian language. These include the disapperance from rhetoric of emotionality, imagery, and elements of logic, as well as stylistic leveling and an increase in the frequent repetition of the same conclusions and clichés.