If I had to take a guess, with her being in MI, she would have had a TS-SCI. It still doesn't mean she had the "Need to Know". Weiner's wife as special asst to the SoS probably had the same clearance. She probably had the "need to know" but that's irrelevant being the SA to the SoS. Pretty sure Hill could read anyone on she felt necessary. Regardless, Hillary is guilty as hell of mishandling classified material as is anyone who worked for her who followed through with her directive to declassify material for submission on an unsecure system.
I think you are seeing "strategic leaks" in order to put pressure on the DoJ to indict her. It most certainly isn't a Right Wing Conspiracy. This is a bunch of pissed off people in the Justice system being held back from pursuing legal action. They are going to do what it takes to circumvent roadblocks to ensure they can meter out justice. 95% of the people in the Justice system are party agnostic when it comes to pursuit of Justice regardless of their personal party affiliation. I've got a couple of friends who I've spoken to at the Treasury and with the DoJ and they are pretty pissed.
And I just made up the 95% fact. Sounds good though, right?