John McCain actually said...

"In my years in the Senate I have supported previous bipartisan efforts to reduce our nuclear weapons in step with the Russian Government, and I have been proud to do so."

"Secretary Gates, you have been quite clear 'that the treaty will not constrain the United States from deploying the most effective missile defenses possible, nor impose additional costs or barriers on..."

"Why is it in the treaty then?"

"This treaty does not constrain our missile defense efforts."