It is reported that Senate Republicans have been trying to interview John Bentel since December 2015. Bentel was the director of Information Resources Management (IRM) in the State Department’s Office of Executive Secretariat when Clinton was secretary of state, and thus he may have knowledge about both Clinton’s private email account and her private server. But he has refused to answer their questions about Clinton’s private server. Senators Charles Grassley and Ron Johnson, the leaders of the Senate Judiciary and Homeland Security Committees respectively, have told Bentel that they would prefer a “voluntary and informal” meeting, but “will consider other options if faced with a continuing lack of cooperation,” potentially referring to a subpoena.
Bentel was secretly questioned by the House Benghazi Committee in June 2015, and claimed he had “no memory or knowledge” about such issues.