How exactly do you mean 'salvage the mess the GOP has become'?
Do you mean lead them to election victory? That may be possible (although i have no idea of how good a campaigner she is).
Or do you mean "fix the underlying problems with the GOP, getting rid of the incompetence, extreme partisanship and evangelical/tea party influence"? If its the latter, what makes you think she'd have that ability? She seemed to be quite happy living in the swamp that is Trump's administration, and seems quite eager to support him. Looks like she's just as much of a scumbag as all the other republicans.