Mo. Rev. Stat. § 115.527
Challenge of nomination at primary, who may make.
115.527. Challenge of nomination at primary, who may make. — Any candidate for nomination to an office at a primary election may challenge the correctness of the returns for the nomination charging that irregularities occurred in the election.
(L. 1977 H.B. 101 § 13.001) Effective 1-01-78