I see... well, here's an idea: Contact the Wisconsin GOP, and ask them what their beef is. Or perhaps the Wisconsin Elections Board; I'm sure they have info on these bogus complaints.
If this were happening to YOUR party, would you not make it public knowledge?
From the link you provided, it appears that the complaint against your candidate is already history:
The state Elections Board apparently agreed with the papers who covered the story: The board dismissed the complaint, with their legal counsel saying such frivolous complaints are an "abuse" of the system.
Now y'all know what you're up against. Playing with the big boys isn't for the faint of heart.