National Review reporter Robert Costa talks to an unnamed Mitt Romney adviser who indicates there are a lot of hard feeling between Romney’s inner circle and New Jersey Gov. Chris Christie over the latter’s embrace of President Obama after Hurricane Sandy:

Governor Chris Christie of New Jersey, the adviser adds, is persona non grata in Romney’s inner circle. “He went out of his way to embrace the president during the final week of the campaign,” the adviser says. “It wasn’t necessary and it hurt us. Todd Akin, Richard Mourdock, and Chris Christie undermined the Republican message.”

Christie, of course,  had earlier been one of Romney’s most able surrogates. He was  an early supporter of Romney and delivered the keynote address at this year’s republican convention.