He may be down and finally out but Mike Huckabee's longevity in the presidential race has been the surprise of campaign season. He was the favorite of evangelicals, finished with a much higher than expected delegate count, and outlasted such better-funded rivals as Mitt Romney. Huckabee lost because he never connected with non-evangelical Republicans, particularly economic conservatives who doubted his commitment to limited government. On the campaign trail, Huckabee mused about fighting poverty and signing a national smoking ban. In Arkansas, he approved tax increases. But these weren't just the candidate's personal tics. Hucakbee was following his evangelical flock. Supportive...