CNN Erin Burnett OutFront December 24, 2015 00:34:00
A staff shakeup in light of his falling poll numbers. he's now tied in a distant third at 10%. the campaign says they are not letting anyone go but you have been around this before. what does this tell you? >> well, ben carson has been doing the slow fade in the polling ever since paris and san bernardino and the resulting doubts about his ability to handle our nation's foreign policy. that's not only a problem for him, by the way. it's a problem for the establishment candidates because they needed two things to happen for them to make a credible challenge to donald trump. one is the field nee...