Most people in that position have not been attorneys (and the current office holder is not!). The fact that Mills is an attorney does not make all of her communications with Hillary privileged attorney client communications. Every lawyer knows this!
Basically, only legal advice and related communications are privileged. Furthermore, as a government lawyer (assuming she was acting as a lawyer), any privilege belongs to the government and not to the government employee the attorney was giving legal advice to as part of her official duties.
So if we were really talking about privileged communications here (which of course I suspect we are not!), the proper approach would have been for Mills and Clinton to turn over the possibly privileged emails to the State Department for them to review to for privilege.
And if the DOJ really wanted to investigate this, they would have challenged the assertion of privilege and if that failed, used the grand jury process to compel production or at least a judicial review of the materials.
This is a total joke and I can’t believe the headlines keep describing Mills as “Clinton's lawyer"....(and Comey letting her sit in on Hillary's testimony.)
PING