She told you, she couldn't finish her job successfully, she has been impeded at almost every turn.
It's not quite so simple as you contend.
George Bush did not have the easiest time, what would people think if he quit? They would say he is weak and can’t take the heat. She was governor for 2 1/2 years and couldn’t handle it. She just quit politics, the GOP will use her in the elections as a speaker to rally the base for other candidates. She will be in politics but on the sidelines.