I will preface all this with an honest admission that this...scandal...could derail her chance at nomination. It could even, theoretically, leave a bad enough impression on a big enough chunk of the electorate to lose her the general that far. It might. Certainly a lot of man-hours and money will be spent trying, that's for sure. Though it is nice to see Republicans finally doing something about unemployment.
But honestly, it's most likely going to blow over, and there are several solid reasons why.
1. No one gives a shit. Let's do the circuit: Leftists have 2 reasons not to care, not liking Hilary in the first place as well as considering it not an offense to have been sloppy in the handling of minor state secrets. Liberal Democrats want to woo her and conservative Democrats are her base. Independents are tricky, but this is still small cheese, so they'll vote for the person who's not going to invade the middle east and their uterus.
After that, you're left with the remaining 30% who are hoping for a Guantanamo Bay finish to this story. And they're kinda busy right now with the hands-down most interesting Republican primary in 40 years. Oh, and imminent doom, there's always imminent doom. Tends to make one want to focus. Anyway, they hate Hilary already, have done for almost a quarter century now. What are they going to do, hate her more?
2. I know the election cycle starts waaaaay earlier these days, but the shot, such as it were, was fired too damn early. It's 15 months until the election, ain't noody going to remember that shit, no matter how hard you pound the airwaves. All people are going to hear is "email". Hell, millenials barely know what email is, except that it's old and antiquated. You might as well be accusing Hilary of improper use of a horse and carriage.
3. You should have learned the lesson from Benghazi. If 9/11 and the worst implementation of a major land war in Asia cannot separate an apparatchik's head from his shoulders, what makes you think this will? Hell, what makes you think it should?