Peggy Noonan has been there and knows.
Palin's friends should be less immediately worried about what the Obama campaign will do to her than what the McCain campaign will do. This is a woman who's tough enough to work her way up and through, and to say yes to a historic opportunity, but she will know little of, or rather have little experience in, the mischief inherent in national Republican politics. She will be mobbed up in the McCain campaign by people who care first about McCain and second about themselves. (Or, let's be honest, often themselves first and then McCain.) Palin will never be higher than number three in their daily considerations.