A Letter to James P. Cannon 
First Published: Leon Trotsky, In Defense of Marxism, New York 1942.
Checked against: Leon Trotsky, In Defence of Marxism, London 1966, p.124.
All footnotes stem from the latter edition.
January 16, 1940
What miserable writing is Shachtman’s open letter. Its only merit is that it obliged me to tell him the full truth about his politics. My answer is already dictated, I have only to polish it. Unfortunately it will not be shorter than my letter to Burnham.
1. This letter was written by Trotsky in English.