Mo. Rev. Stat. § 115.624: State party committees may remove members, when.

The members of the state committee of a party may remove a member of such committee upon a two-thirds majority vote of all state committee members voting thereon. Upon certification to the secretary of state by the state committee that a two-thirds majority of its members have elected to remove a member, such member shall forfeit his or her office and a vacancy shall exist on said state committee.