Trotskyist historian Pierre Broué noted that Trotsky had misinformed the Commission, claiming to have had no contacts with oppositionists inside the USSR to form an Opposition bloc (one of the charges of the Moscow Trials) despite being reminded during the Commission by his secretary, Jean van Heijenoort, of the opposite being the case. American historian J. Arch Getty also noted this, pointing out that "Trotsky and Sedov were reminded of the bloc at the time of the 1937 Dewey Commission but withheld the matter from the inquiry."