It’s almost too banal to argue at this point, but Huckabee’s FairTax is a very bad idea that the candidate himself either does not understand or is constantly lying about. It is not progressive, it is not simple, and it is probably not enforceable.

Ezra Klein is a former Prospect writer and current editor-in-chief at Vox. His work has appeared in the LA Times, The Guardian, The Washington Monthly, The New Republic, Slate, and The Columbia Journalism Review. He’s been a commentator on MSNBC, CNN, NPR, and more.