Further, Mueller’s subpoena, issued last month, seeks all communications — including handwritten notes — dating back to Nov. 1, 2015, just 5 months after Trump announced his candidacy, Axios reported.
The other nine campaign officials with whom the witness corresponded:
Once Hicks leaves, Cohen will be the only person on this list who still holds a job in the Trump administration.
Notable is that Michael Flynn, who resigned shortly after Trump’s inauguration, is not on the list, making it possible he might be the witness who was served the subpoena.
The latest comes a few days after NBC reported that Mueller is now investigating what Trump and his campaign knew about the hacked Democratic emails and whether the campaign coordinated with WikiLeaks on the email dump heading into the election.