>>10254679 She was "Deputy Assistant to the President" (hussein) at the same time she was Jill Biden's COS. That's a rather….intrasting combo of duties.
DOS FOIA reading room:
https://foia.state.gov/Search/Results.aspx?searchText=%22Sheila%20Nix%22&beginDate=&endDate=&publishedBeginDate=&publishedEndDate=&caseNumber=