As a scandal, the Clinton email thing is weak tea. For folk already inclined to mistrust Clinton on the Right (and the Left), it just adds to the impression. For those who see her as the great hope for the Dems retaining the White House in 2016, it's hand-waved with an array of excuses. (The current Panickmeisters amongst the Dems are just looking for something to panic about, or else to draw attention to themselves.)
That doesn't mean it isn't important — the email record for senior public officials is a critical historical (and, sometimes, legal) resource, and Clinton's use of a private email account, regardless of the legality at the time, should meet with vigorous disapproval at least (and at most). It's a game that's been played by folk on both side of the aisle, and what I most hope from this contretemps is that it serves as notice to others playing similar shenanigans in the future.
A Hillary Clinton Email the State Department Couldn’t Find
Specific correspondence that escaped public scrutiny after the former Secretary of State decided to communicate through a private account
Interesting article and a lot of good comments underneath.