How did the Communist Party control legislation in the Soviet Union?

In the Soviet Union, the Communist Party maintained absolute control over legislation by ensuring that all state institutions were subordinate to party policy. While the Supreme Soviet functioned as the official legislature, it served primarily to provide unanimous, rubber-stamp approval for decisions already debated and finalized by top party leadership.123

This control was facilitated through several key mechanisms:

• Interlocking Membership: Virtually all high-ranking government officials were also party members. This system of dual membership ensured that party directives were seamlessly integrated into state administration and lawmaking.2
• Centralized Decision-Making: Ultimate authority resided in the Politburo, the party’s supreme policy-making body, which combined legislative and executive powers.432
• Enforcement: The procuracy was responsible for ensuring that laws and regulations were enforced in strict accordance with party leadership. Furthermore, the judicial system was designed to ensure party control, with judges selected by party officials and political cases often decided via direct instructions from party leadership, a practice known as "telephone law".1

Through these structures, the Communist Party effectively held a monopoly on power, rendering constitutional and legal documents subordinate to its own political agenda.2