What this country will end up needing is something like a Truth and Reconciliation Commission because what the country needs is not so much for particular people to go to jail but for the lies and the lies to cover up earlier lies to stop. The country can't get past what has happened or move forward until we can get the truth on the table, deal with it and move on.
Not really making a partisan point here, but I myself don't think people are ever satisfied with commissions. There's usually a minority dissent, and folks go on believing the side they came to dance with.
I've been interested in the investigations into the Pearl Harbor attack, which might be the closest historical analogue to this, and with parties reversed. Surely someone had blundered. This article seems to be a fair recap.
Seems right after Pearl Harbor, the Roberts Commission found the Hawaii commanders culpable, and FDR and Washington in the clear. Then as the war was winding down in '44, a court-martial was held, and one of the commanders was vindicated.
In November '45, after the war had ended, there was yet another commission which voted along party lines, and with an election coming up, the majority Democrats once again vindicated FDR, even though he was already dead.
In 1995, the Democratic administration's Undersec of Defense killed another inquiry. Finally, in 1999, the Republicans passed a Senate resolution vindicating the naval officers.
Almost sixty years later, and still they were voting along party lines. There will be no reconciliation.