It's true she's not held elective office, but I'm of the opinion that time spent in the useless politicking of congress doesn't make people less effective the more they are exposed to it. She's held positions of control and influence that far outweigh the minutia of congress. She is used to making a decision and expecting things to happen because of it. Why ruin that?
Yes! Yes! One thing she won't have is all those "handlers" and "hangeroners!"