The Trials of the 16 and 21 accused the members of this leader's party of breaking Article 58.  
The Trials of the 16 and 21 accused the members of this leader's party of breaking Article 58.  This man's idiotic agricultural advisor ignored Mendelian genetics and claimed that vernalization was inheritable. An advisor to this leader coined the term "socialism in one country." One of his advisors proposed a massacre in the (*) Katyn forest. A secret speech about this man's personality cult drove his advisors toward rehabilitation. An old rival to this leader was murdered by Ramon Mercader in Mexico City. NKVD leader Nikolai Yezhov led the great purges of his cabinet. For 10 points, name this Soviet leader who exiled Leon Trotsky and succeeded Lenin.
The Trials of the 16 and 21 accused the members of this leader's party of breaking Article 58.  
Joseph Stalin