Ed. Sec. Arne Duncan in today’s Wall St. Journal on whether it’s worth watering down RTTT proposals in order to garner local union support:

Mr. Duncan said in an interview that he welcomed the friction between union and state officials but warned against states weakening their overhaul plans simply to win buy-ins from unions. “Watered-down proposals with lots of consensus won’t win,” he said. “And proposals that drive real reform will win.”