Issa can't jail Holder. Nor can he fire him.
Given the current make-up of Congress and the Executive all he can do is apply pressure for a resignation. He can do that only by continuing the investigation -- unearthing more and more incriminating evidence...until the MSM can no longer deny Fast & Furious.
We control one House. We do not control the Senate, nor the Executive. His leverage is limited.
And you are impatient. Where he must be patient.
Have a nice life.