Kill whose pensions??

It seems there has been a clear and strong push, locally and nationally, to kill public office pensions like for city, state and federal employees and maybe especially teachers. With all of this, doesn't it seem we should do away with the automatic, juicy, far-too-big, self-created pensions of the US Congress, first, last and foremost? That would serve many great purposes, it seems to me, not least of which is first, saving Federal monies and second and more importantly, doing away with Senators and Representatives desire to get in there so they can have it cushy for the rest of their lives, once they get seated? It sure seems like a great idea to me and again, one that would serve many good purposes. Other than the Congresspeople themselves, I can't imagine who'd be against this, too.