In 2017 I examined the evidence that Russia hacked the DNC to help Donald Trump. I thought it was highly unlikely or even impossible based on what had been written.
Recently, CrowdStrike's President Shawn Henry testimony was released. He said (via house.gov, pdf):
There’s not evidence that they were actually exfiltrated. There’s circumstantial evidence but no evidence that they were actually exfiltrated.
To explain how they were removed without exfiltration...
There would be ways to copy it. You could take screenshots. You could copy it.
Of course, screenshots wouldn't have included the metadata. So, clearly Mr. Henry is unaware of what data was actually exfiltrated. Added onto the history of CrowdStrike just making up attacks (CounterPunch). I think we can say that CrowdStrike was never interested in finding out who hacked the DNC.
If there was never an attempt to find the culprits. And, the DNC hired them. We must, therefore, assume that the DNC already knew how the data was removed and just lied about everything else. Who would guess the party of the KKK would be nothing but lying liars who lie?