On Iraq, the ad says, "A trillion dollars in Iraq over the next 10 years. McSame as Bush."
We have a few issues with this statement, though it gets its larger point correct.
The Congressional Budget Office, at the request of Congress, came up with estimates for how much it would cost to keep troops in both Iraq and Afghanistan for the next 10 years. The CBO estimated it would cost from about $480-billion to just over $1-trillion, depending on the number of troops. The analysis makes clear that troop levels in Iraq drive the dollar amount higher. The higher estimate assumes troop levels of at least 75,000 through 2013, with the number decreasing through 2017.
But those are troop levels to which neither Bush nor McCain has publicly committed. McCain has said troops should stay as long as needed but that specific troop levels should be dictated by conditions on the ground and the advice of the military. Bush, meanwhile, has declined to speculate on future troop levels, saying it will be up to the next president and leaders of Iraq.
Still, Bush and McCain seem to be on the same page on Iraq about not withdrawing troops rapidly. McCain has said troops could remain in Iraq for many years, comparing the situation to continuing U.S. presence in South Korea or Japan. When Bush endorsed McCain, he said, "The good news about our candidate is he'll be a new president, a man of character and courage, but he's not going to change when it comes to taking on the enemy."
We find the "McSame" ad fudges the cost in Iraq by not taking into account that the $1-trillion CBO estimate includes future spending in Afghanistan as well. But the ad makes a larger point that Bush and McCain agree on their philosophy for handling the Iraq war and the withdrawal of troops. We find the statement to be Mostly True.