In my view, its not so much who hacked her. The real story should be that her carelessness proves she has no regard for national security and therefore is not qualified to even be running for president. Not only that, by allowing her emails to be hacked she has exposed herself to potential blackmail.
On top of that she is a known liar. In my opinion the administration is again protecting her and the FBI is being used to put up a smokescreen for her by pointing the finger at the Russians. Maybe it was Israel; after seven years of mistreatment by the U.S., Netanyahu certainly has plenty of motives to want to even the score.
It is ALL about a smokescreen and diversion to protect her.