He needs to provide a source for this data. I'd love to see one.
I support getting rid of the income tax, but this $1 trillion a year seems way out of whack. That would mean that almost half of the federal budget would be going to IRS enforcement, and I just don't by it. He might be adding in the loss of productivity, and the cost that people pay accountants and advisorts, but he needs to say that if he has the numbers to back it up.