Palin was selected because the Republicans needed to make a bold move to counteract a strong Democrat tide in 2008. Palin accomplished that goal until savaged by the media.<quoted text>She was a surprise foisted on McCain by the RNC and William Kristol. She was never vetted by McCain's campaign people until after the decision was made to put her on the ticket and introduce her to the public.
Everyone, including McCain's people raced to Alaska to learn about Sarah Palin. McCain's daughter has written and spoken publicly about the fiasco as have others close to the senator.
McCain's daughter is not a useful source for anything.