What methods did lenin use to gain total control over the ussr?

Lenin was sent back to Russia from exile by the Germans in WW1 to destabilize russia which worked. His slogan was land, peace and bread. He formed a party called the bolsheviks, who later executed the royal family. Lenin kept the populace believing that he was helping them by improving the economy.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.