I believe you've highlighted the point behind why it's taking so long. The compromised Federal justice system, which has to be avoided at all costs. Getting civilians, even politicians, in front of a tribunal requires some pretty significant hoops to be jumped through. Add to that the crimes in question have to be after Barry left office to avoid potential "secret pardons," it makes sense that it will have to be a mil op that goes straight to GITMO when it happens. As for Chelsea, she's eyebrow deep in all of it, too. She's got to be on the list, too.