It is in this context that Trotsky's attack on Stalin must be understood. Trotsky's attack on Stalin was not directed against Stalin as an individual but against someone who during the course of struggle had emerged as the most representative spokesman of the Bolshevik Party which was upholding, defending, and applying Leninism. The main target of Trotsky's attacks, therefore, was not Stalin but the Bolshevik Party. It was revolutionary Bolshevism - Leninism - that was under attack. It was an attack on the metodhs and forms of organisation of the Bolshevik Party - an attack on the fundamental Leninist policies pursued by the Party.

Harpal Brar, Trotskyism or Leninism?, pg. 90.