Many districts in St. Louis and St. Louis County are drawn to be heavily Democratic or Republican. Thus, when a seat opens up, the August primary can be most competitive election for eight years.
The victors in these “primary-are-the-election” races will face different realities in Jefferson City, depending on their political parties. Republicans could get a chance to handle big-ticket legislation and move up in leadership. Since they’re a super-minority, Democratic winners will have fewer opportunities to influence the legislative process. But often times, they can provide a counterpoint to the GOP supermajority.