Answer:
Stalin's rise to power was a complex process that involved political maneuvering, propaganda, and the elimination of his rivals. A solid argumentative statement could be: "Stalin's ruthless tactics and manipulation of the Communist Party allowed him to consolidate power and become the leader of the Soviet Union, leading to significant political and social changes in the country.
Firstly, Stalin's position as General Secretary of the Communist Party gave him significant control over party appointments and policies. Secondly, his ability to manipulate and eliminate political rivals through tactics such as purges and show trials solidified his power base within the party. Lastly, his role in industrializing the Soviet Union, which increased his popularity among the working class.