Huntsman seems not to have noticed that he has missed the boat. He's not a contender and - unlike other non-contenders such as Paul, Gingrich and Trump - adds nothing to the conversation.
His latest attempt to appeal to ... someone (I'm not exactly sure who) is a promise to strip the tax code of loopholes and deductions (which sounds a bit like Obama's promise to save entitlements and reduce debt by eliminating "government waste"). Of course, this alone is a promise to raise taxes. So Huntsman adds that he would adopt a simplified three-tier tax structure.
But the devil's in the details. I fear a "moderate" Huntsman tax compromise would cut deductions but do little in the way of lowering the overall tax rate - thereby effectively handing democrats a tax (increase) "compromise" victory. Huntsman's does not dissuade me of this uncertainty by the use of progressive rhetoric, identifying "special-interest" as the beneficiary of tax "carve-outs" and denouncing that liberal boogey-man, "corporate welfare."
The purpose of tax deductions, exemptions, and credits (with few exceptions) is to provide benefits to particular (well-connected) business sectors. In other words, they interfere with market allocations. Which is to say that there are efficiency losses associated with them. Any politician of sense not carrying water for the asphalt lobby wants to excise them.