Oh, wait...
"It clashes with the stance Huckabee has taken during his race for the White House and with his record as governor of Arkansas, when he signed into law a measure prohibiting smoking in most indoor public places."
http://thehill.com/leading-the-news/huckabee-about-face-on-smoking-2008-01-16.html
NOT a flip-flop, though! Because, well...because.