How and Why Stalin became Party Leader - Defeat of the Left
Occupied the Golden Middle with Molotov, Kirov, Vorshilov and Kaganovich
Trotsky forced out of post as Commissar for War in 1925
triumvirate split without fear of Trotsky
Kamenev and Zinoviev left Stalin at 14th Party Congress 1925, joined Trotsky
Stalin and Bukharin formed Duumvirate
1926 - Literary Discussion, pamphlets and essays flooded Party, Stalin won
Criticised for China stuff in 1927
1927 - Trotsky and Zinoviev expelled from Party