Carson is actually up slightly in this poll (and in Bloomberg as well). Really, the only candidates who have had significant declines are Bush and Fiorina. One would have thought Rubio would gain more given how much Bush dropped since their last poll (Rubio did not change at all in this poll). Kind of throws a wrench into the conventional wisdom of this race if support from declining establishment candidates primarily goes to Cruz
1.
1 Of course, this is easily explainable if one views Trump and Carson as functional decoys.
