 In 1926, Rudzutaks was appointed Deputy Chairman of the Council of People's Commissars (the equivalent of Deputy Premier) and held this position until 1937.In January 1926, he was made a candidate member of the Politburo, and in July, was raised to full membership in place of Grigory Zinoviev, who was expelled as a member of the left opposition.In February 1932, Rudzutaks gave up his place on the Politburo on being appointed chairman of the Central Control Commission, and of "Rabkrin", making him the principle judge in cases involving alleged breaches of communist party discipline.