I doubt that the NSA or other agency wants to do actions against one of the higher ups. They are designed to follow their commands, not to spy on them. If they hack the politicians, their practices will just be questioned far more likely. Of course, if there is a judicial order, they will act against them, as they should, but not without one.
That's funny, when the NSA gained the ability to hack the entire U.S. they became the real power.