She has made it a point to have an entertainment career, targeted towards a deep but narrow and loud audience.
IMO she has NOT lived up to her full potential. Had she taken a more broad approach, not just diehard Tea Party views, and worked on her vocabulary and delivery, she had more potential. As it is, with resigning then brawling in Alaskan summertimes, she is limited.
But as with so many of these types, the occasional threat to run for office, keeps their careers going.