He should, he knows exactly who it is. I think he is probably frustrated that Roberts is sitting on it. In other words the perp is getting away with it.
It simply was not a Federal matter and never should have gotten to the USSC. So it was who controlled the court at the time that mattered. Totally political.
They want a justice to leak the leaker in order to ruin the justice as a leaker. Classic political counterintelligence operation tactic.