I thought one of Mccain’s biggest flaws was his impulsive, angry nature. His choice of Palin as the VP candidate was itself rather impulsive, and, as soon became clear, not very good. Her chief appeal was symbolic for red-staters–she was hated by the same people they thought hate them. But once she opened her mouth, it was incoherent or just run-of-the-mill talking points.
Her recent decision to quit the governorship of Alaska midway through her first term to position herself better for national politics is unwise, unless her goal is to make money on the speech circuit. Rich Lowry I thought explained it best.