Last May, when Indiana Gov. Mitch Daniels was pondering a White House bid, Jason Sorens of the University of Buffalo wrote a commentary that went largely unnoticed. Wanting to "take a look at Jon Huntsman," who has been "widely viewed as a 'moderate' Republican, but whose" policies "stake out a position that may be more libertarian than Daniels'," Sorens concluded that after former Gov. Gary Johnson and Texas Congressman Ron Paul, Huntsman offered the most libertarian credentials — besting even Daniels. Sorens's views deserve recognition in New Hampshire, a generally conservative state with decisively libertarian leanings, as our first-in-the-nation presidential...