Let's say you have a Ford and decide to replace everything under the hood with Hyundai parts, including the engine and transmission. Could you still honestly market your car as a Ford?
That question gets at the heart of the controversy over who is being more forthright about GOP Rep. Paul Ryan's plan to "save" Medicare, Republicans or Democrats.
If you overhaul the Medicare system like you did your Ford and tell the public it's still Medicare, are you doing so honestly?