`` I screwed up , '' John McCain tells William Ayers for canceling scheduled visit . John McCain used McCain 's no-show as subject of ongoing joke . McCain said her experience as a mayor , governor and PTA member have prepared her to be president . ` Sarah Palin also discussed Sarah Palin , McCain 's ties to 2001 ' radical William Ayers .
`` I screwed up , '' John McCain tells William Ayers for canceling scheduled visit . John McCain used McCain 's no-show as subject of ongoing joke . Sarah Palin also discussed Sarah Palin , McCain 's ties to 2001 ' radical William Ayers .