One would expect built-in backups, built-in "mirroring," for high level government work which has legal implications, like the IRS.
So will conclude at this time, the truth is:
--The smoking gun is in her emails, and they are just going to try to run out the clock on the administration, with delays, like this and more to follow.
--They really are so incompetent, as to not have backups, mirroring, etc.
--It seems the Republicans are not sharp enough to break these scandals out into the open fast enough to accomplish it in time, to a degree of use politically. I offer Darrel Issa as proof.