(CNN) - Days after former Massachusetts Gov. Mitt Romney scored big political points in New Hampshire at CNN's first GOP Presidential Primary debate, some say the candidate let his victory go to his head.

An editorial in the first-in-the-nation-primary state's Union-Leader, also a co-sponsor of the debate, scourged Romney for acting "high-falutin'" and "haughty."

"Mitt Romney did a good job at Monday night's Republican presidential debate. But not that good," the article states.