McCain asks Sarah to support him. She refuses. Imagine the headlines. So what if J.D. Hayworth declares? Sarah can withdraw for any number of reasons. Not saying I like it.
My wife said it this way. Sarah could have simply given the typical political double-speak answer on this.
Answering the question to whether she was going to be supporting/endorsing McLame: "Oh, John McCain certainly doesn't need MY endorsement...He's John McCain! afterall ... I'll always have a special place in my heart for him for what we went through in 2008, yada yada yada..."