That will reduce tax revenue. Do you have a link to his plan to either reduce spending or increase the deficit?
And it’s not “his” (Huckabee’s) plan as you certainly know. Why misstate like that? Do you hope to fool the gullible? The FairTax originated long before Huckabee was on the scene (the FairTax in the mid-90s or so) and has never had anything to do with any single political candidate - including Huckabee.