It was a whistleblower lawsuit that was thrown out of court and the Government didn't want anything to do with. It was filed by a Whackjob in Missouri trying to cash in on Cunningham's misdeeds and smear a few others in the process. I believe FR, Conservatives, and Republicans, should be above the kind of smearing that your post tries to perpetuate.
I don't think he was going after Hunter with that post - it also mentions Wilkes. And Hunter did get a good amount of campaign contributions from Wilkes, so it is something he will need to address at some point.