She did fine as governor and decided to resign on her own after her state, with their small population, was inundated with frivolous lawsuits from leftists. She left it in the capable hands of her Lt. Gov. Sean Parnell. Anyway, after that she roused the Conservative and Tea Party members to vote Republican in what became a blowout victory in the 2010 midterms.
She's still very significant today, mainly because Liberals can't stop talking about her, but also because she's helping to get people elected. People like Ted Cruz. Yep....remember that name.