There is no such thing as the 9-9-9 tax - Ezra Klein

http://www.washingtonpost.com/blogs/ezra-klein/post/there-is-no-such-thing-as-the-9-9-9-tax/2011/08/25/gIQAiIhWhL_blog.html

Which gets to perhaps the main way in which there is no 9-9-9 plan: This plan wouldn’t work. Not as policy and, as I expect Cain will soon find out, not as politics. Moving to an 18 percent consumption tax is, among other things, very bad for older voters, who make up a substantial portion of the Tea Party base. Jacking up taxes on the poor and the middle class even as you sharply reduce them on the rich and completely eliminate them on overseas income for corporations isn’t popular among anyone in the political system who isn’t specifically paid by the Club for Growth. The 9-9-9 plan is a great slogan. But the more seriously Cain gets taken, the more seriously the plan is going to get taken. And as that happens, it will soon become clear that it’s very poor policy.