The Congressional Budget Office predicts a $7 trillion deficit by 2019.
The Office of Management and Budget predicts a $9 trillion deficit for that period of time. In addition, it predicts public debt doubling and becoming three-quarters the size of the economy.
This does not make nationalized health care appear affordable, does it? It's like saying "Honey, all of our credit cards are maxed out, we have no savings, our cars both have loans on them and need work, our mortgage is too high. Let's buy a bigger house."