Ван Мин
The 5th National Congress again amended the party constitution, adding a chapter on control commissions and their aims but devoting little attention to their operations. Partly because of this, the control commissions actively participated in several party rectification campaigns during the late 1920s and early 1930s. At that time the commissions tended to participate in political struggles, most notably the purges of Zhang Guotao and Wang Ming.