Because if she does she is done!
She can’t turn over the server because both her hands are busy giving Gowdy and the rest of the Country the one-finger salute.
Why would a formerly successful prosecutor accept the chairmanship of a toothless, powerless committee that has less power than Aunt Dinah’s Quilting Circle?! Unless it was seen as a way to preen for a gig on SCOTUS, maybe.
Does the committee even have the power to compel people to appear before it? Can it place them under oath? As Archie Bunker would say, “What’s da’ pernt?”