U.S. House Speaker Paul Ryan and U.S. Senator Mitch McConnell address the media during the 2017 "Congress of Tomorrow" Joint Republican Issues Conference in Philadelphia, Pennsylvania, U.S., January 26, 2017.

As Congress gets down to the task of reforming the tax code, I find myself asking: Why is this necessary?

No doubt, tax reform is necessary. Our tax code is a mess, to say the least. But why is it a mess? The answer, at bottom, has to be Congress itself. The legislature is solely responsible for setting tax rates, exemptions, and deductions. It is therefore reforming a tax code that it alone deformed.