He’s not in the administration, but Stone is increasingly looking like the first indictment. Which is great news for Trump because there’s no point even trying to flip him–his record as a professional serial liar and degenerate makes him worthless as a witness. And given the plausible deniability cover of him having “quit,” he’s eminently underbusable.
Given the way Grassley and and DiFi were looking when they came out of their meeting with Comey in the SCIF, however, I doubt that will be the last one.