In 1956 he was elected to the 6th Senatorial District ( the 7th , 10th , & 13th Wards of the City of Milwaukee ) to succeed fellow Democrat William A. Schmidt , who was not running for re-election . Moser obtained a plurality in a four-way Democratic primary election against Assemblyman Cecil B. Brown , Jr. , former Assemblyman John Schaller , and Brown Deer village trustee Fred W. Voigt ; and was unopposed in the general election . He served as the floor leader for Senate Democrats in the 1960 session , and was elected a Kennedy delegate to the 1960 Democratic National Convention . He easily turned aside challenges from Schaller in the 1960 primary , and from Republican Delbert Fowler in the general election ; and served again as the Democratic floor leader in the 1961 session , leading the fight against the adoption of a sales tax in Wisconsin ; but resigned effective Feb. 1 , 1962 to become a Milwaukee County judge . He was succeeded by fellow Democrat Martin J. Schreiber
1960 Democratic National Convention
1960 Democratic National Convention
William R. Moser