Espionage pure and simple.
The bad part is that it won’t matter. Like the Awan debacle, the Uranium One bribery, etc, the media keeps it well hidden and the Republicans don’t have any balls.
I’ve accepted that nothing’s going to happen, nothing’s going to change. They’ll still all be living large, while the rest of us work till death. Sessions wouldn’t arrest Clinton if he found her with with an empty gun pointed at Seth Rich, it would be too much work.
In my view, very little or no hacking took place OR WAS NEEDED. Hillary merely would have the classified material posted on her wide open pretend server, and then let any interested foreign nation have carte blance of whatever they wanted to pick off of it; and send their Million$ in gratitude to the Clinton Crime Family Slushfund.