They want to replace a mildly progressive tax with a decidedly regressive tax and make the argument about fairness? You can have an articulate argument about whether income taxes deter economic development. You can have an argument about whether such taxes lead to out migration of people and firms. Heck you can have a philosophical argument about whether society should be able to tax the fruit of your labor (or your trust fund). But you cannot argue with a straight face that replacing an income tax with a broad based sales tax (one that taxes necessities) is fair. That insults people’s intelligence. [David Brunori]