During the internal party unrest following the suppressed uprising of June 1953, Honecker sided with First Secretary Walter Ulbricht, despite the majority of the Politburo attempting to depose Ulbricht in favour of Rudolf Herrnstadt. Honecker himself though faced questioning from party members about his inadequate qualifications for his position. On 27 May 1955 he handed the Presidency of the FDJ over to Karl Namokel, and departed for Moscow to study for two years at the School of the Soviet Communist Party at Ulbricht's request. During this period he witnessed the 20th Congress of the Soviet Communist Party in person, where its First Secretary Nikita Khrushchev denounced Joseph Stalin.