Many people know about the Koch family connections to Americans for Prosperity, which is paying for some negative advertisements against Sen. Jean Schodorf, R-Wichita. But who is behind the shadowy Ohio-based group that is spending big bucks on negative television and radio ads against Schodorf and fellow GOP 4th Congressional District candidate Wink Hartman? Why would an out-of-state group care so much about whether Mike Pompeo wins Tuesday’s primary? Is its funding from Kansas donors? Unfortunately, voters can't find out answers because campaign-finance laws don't require such groups to disclose where they get their money.