A poll released by Missouri Senate candidate John Brunner showed him up by 20 points over his competitors in the GOP primary. In a horse race matchup among likely primary voters, Brunner led with 40 percent, followed by former state Treasurer Sarah Steelman and Rep. Todd Akin with 20 percent each. Nineteen percent of respondents were undecided. A spokesman for the Brunner campaign said it was a clean ballot test — that is, respondents weren't given any additional information before being asked their candidate preference. (more…)