If she built upon it over two terms, rather than jump and take VP slot, it could have been different. There is nothing you and I can do to change reality right now.
Change what?
She is a uniter, not a divider, that has nothing to do with her resigning after 32 months, even after all that the media threw at her, she still left with with very high approval ratings.
Romney on the other hand, left with 34% approval, he is a divider, not a uniter.