By far, the most significant story of the 2008 Republican primaries has been the unlikely candidacy of Mike Huckabee and his_single-handed_resuscitation of Christian conservatives as a force to be reckoned with in the Republican_Party. Yet, regardless of how he fares on Super_Tuesday_and_beyond, Mr. Huckabee will perhaps be best remembered as the man who, however unintentionally, helped persuade evangelicals to vote a Democrat into the White House in 2008 – and possibly in future races, as well. Since the 1970s, conventional_wisdom has held that evangelicals are driven by a single-minded_concern with defending "moral values," while mainline Protestants focus on issues of...