“Last week the Mercatus Center published my study showing that the health care law of 2010 (the ACA) will add at least $340 billion to federal deficits over the next ten years, and more than $1.15 trillion to net federal spending. The study has received a great deal of attention, which has highlighted the need for wider public understanding of federal budget procedures. In this article I will explain some of those budget rules while further substantiating that my basic conclusion is correct.”