Why did Lenin set up a one party state?

Lenin established a one-party state in Russia to consolidate power and eliminate political opposition, which he viewed as essential for the success of the Bolshevik Revolution. He believed that a single-party system was necessary to maintain control over the state and implement the radical changes needed to transition to a socialist society. This approach aimed to prevent counter-revolutionary forces from undermining the revolution and to ensure that the party could effectively direct the country's economic and social transformation. Ultimately, Lenin viewed the one-party state as a means to achieve stability and progress in a tumultuous post-revolutionary environment.