Proposition 1 is a 1% sales tax for police. With its passage, sales tax in some areas of Columbia will be near 10%. Jefferson City residents approved the extension of their capital improvements sales tax with 75% of the vote. Chism wins Republican nomination for Callaway County presiding commissionerFormer Callaway County Sheriff Clay Chism won his party's nomination for presiding commissioner on Tuesday. The "yes" votes for Proposition 1, a sales tax for public safety, held about a 200-vote lead over the "no" votes with about 10,000 ballots cast.