Whoever did this had better have done a masterful scrubbing. One "smoking gun" email piece of evidence and it will be the tipping point - all hell would break loose.
That is the whole point of finding these e-mails. And it is the steady drip, drip, drip, of information just like this that is steadily eating away what little credibility this crew ever had. They cannot keep their lies straight about anything, and they are constantly forced to come up with new, increasingly unlikely explanations for the newest revelation du jour.
They still think they can just tough this one out and it will eventually just go away.