FILE PHOTO: Republican presidential nominee John McCain (R-AZ) concedes victory on November 4, 2008 with vice-presidential nominee Sarah Palin by his side. (PHOTO CREDIT: GETTY IMAGES) FROM CNN's Jack Cafferty: It's gotta be a sign of pure desperation. The Fox News commentator and soon-to-be Alaska tour guide, Sarah Palin, is reuniting with Senator John McCain … Continue reading What can Palin do for McCain that she hasn't already done?