A constitutional amendment banning same-sex marriage was also on the Missouri ballot. The results demonstrated what many conservatives have suspected all along: The issue matters deeply to Middle America. It's not just that the measure passed with an overwhelming 71% of the vote. According to the Missouri Secretary of State's website, more primary voters actually voted on the initiative (one way or the other) than on any other statewide race. There were 38,000 more votes on the marriage amendment than on the gubernatorial race (all parties combined). The marriage amendment won in every single county in the state and lost narrowly only in the city of St. Louis.