"We are paying a very heavy price for the mismanagement -- that's the kindest word I can give you -- of Donald Rumsfeld, of this war. The price is very, very heavy and I regret it enormously." McCain told an overflow crowd of more than 800 at a retirement community near Hilton Head Island, South Carolina. I think that Donald Rumsfeld will go down in history as one of the worst secretaries of defense in history."