Quick and brief diary. Because I have stuff I have to do.
I highly recommend that you ready Jeffrey Toobin's piece in The New Yorker
There will be no criminal charges. This is not a criminal issue. No crime was commited
The consequences for Clinton, in the midst of a Presidential run, are far more likely to be political than legal. Criminal violations for mishandling classified information all have intent requirements; in other words, in order to be guilty of a crime, there must be evidence that Clinton knew that the information was classified and intentionally disclosed it to an unauthorized person. There is no evidence she did anything like that. This is not now a criminal matter, and there is no realistic possibility it will turn into one.
There could be political damage - duh - but I personally don't think that many of the people who are turned off to Hillary because of the email "scandal" were going to votre for her anyway - see Benghazi "scandal"
Could this issue cripple Clinton’s candidacy? Certainly it’s no help, especially for a candidate who has had trouble earning the trust of voters. Still, it’s hard to imagine that voters will be focussed on this issue six months from now, to say nothing of Election Day, which is more than a year away.