According to the Real Clear Politics average, John McCain has moved into third position in the Iowa GOP caucus. While a lot of attention has been paid to McCain’s New Hampshire surge, less notice has gone to the Arizona senator’s Iowa rebound. But McCain’s campaign seems to have noticed – the senator is returning to Iowa this week. As Cardinal Richelieu has long argued, a surprise third-place finish in Iowa would give McCain a fresh burst of momentum and prepare the ground for a New Hampshire upset. The question is: Will McCain be able to finish third in Iowa on free media alone?