opt for zero. >> and the other thing is there's no national sales tax attached to this plan which is a huge difference between what's about to be the perry plan and the herman cain plan and that was the one much talked about controversial point of the herman cain plan was adding that 9% federal tax to your retail consumption. >> all right, so we'll see how that stacks up and we'll see if maybe the cbo or somebody else wants to grade it on the side and see if enough revenue goes in there to change anything. how does that plan stack up against plans of other frontrunners? molly henneberg has a calculator and very smart math friend, very good at math, i should say, and more from washington. what did you come up with? anything? >> always, brian. good morning, brian. >> that's good news. >> gretchen and steve. rick perry is hoping this new economic plan that includes that flat tax proposal will give some gas to his campaign especially among conservatives who are intrigued or interested in the flat tax proposal because they say it would be more simple and more equitable across the board.