WHy si John Mccain so adamant in not pulling the troops out of Iraq?

like sarah palin said, "its a white flag of surrender." who cares sarah?? Its been like 4 years since the "mission accomplished" statement from BUsh, and your talking about us waving a flag of surrender??? Shouldnt we let Iraq take care of itself with their own money?? thats what the iraqis want. Even bush agreed that they should be pulled out within the next two years. Why is McCain so adamant about not giving up when we've already won??