You have a point about Benghazi, however the only indictments of Americans thus far associated with the SC investigation into circumstances of the election have been process crimes. None of them have thus far included actual crimes committed assisting Russian interference.
Manafort & Gates are the only parts of the campaign with known indictments outside of process crimes. Thier charged stem from activities before 2016 and are completely separate from the campaign.
The other indictments involve Russian actors/entities. And one ham sandwich.
Transcripts US v Concord Management
“
Dubelier said he wasn't authorized to appear in court for Concord Catering, a firm which he contended should never have been listed in the indictment returned in February.
"The government indicted a proverbial ham sandwich — somebody that didn't exist ... at the time period alleged by the government," the defense attorney said.”
https://www.google.com/amp/s/www.po...e-concord-management-pleads-not-guilty-578535
This is not to say there aren’t other indictments under seal or others coming.