Where is Cheryl licensed to practice law?
As an employee of the United States Department of State, Mills was Counselor to the Secretary of State; it is unclear under the Federal Rules of Evidence whether Attorney–client privilege applies to these communications.[20] Law Professor Patricia Salkin writes in The Urban Lawyer that government lawyers would be well advised to caution their government clients, particularly if the client is believed to be an individual public official, about the uncertainty of the privilege for what may be about to be disclosed [21] Mill's attorney raised this protection in May 2016, under questioning by the Federal Bureau of Investigation in connection with the e-mail investigation.[22] In 2002, the United States Court of Appeals for the Seventh Circuit reiterated that government lawyers may not exercise an attorney-client privilege in an effort to shield information from a grand jury.[23]
https://en.wikipedia.org/wiki/Cheryl_Mills#Attorney-Client_Privilege