IIRC a Congressional subpoena can be issued only as part of an investigation into criminal charges brought by the U.S. Justice Department (fat chance).
Trey Gowdy COULD deliver a stemwinder of a speech that would flay the skin off Hillary’s bones where Benghazi is concerned and force her to respond. Also not likely.
He’s being too Hamlet-like & hesitant, IMO. Must be that horse head he found in his bed one morning.
I assure you, he’s gonna get her in front of himself, and he’s gonna lecture her most sternly and he’s gonna holler at her too and it will be on TV.