Hmmm. The thing that was supposed to bring Trump down was his comments about George Bush.
If that is why his support declined, why is Jeb! still at 4%.
NBC/Marist drastically changed their methodology by halving their sample compared to their last poll in January NBC/WSJ/Marist 1/17 - 1/23 718 LV
January 2016: Likely Republican Primary Voters: n=718,
Nevermind, my mistake. Thought we were tallking about the South Carolina primary. Same organization uses a much larger sample for a State Primary than what was used in this “National Poll”.
Good luck with this N=400. That is a joke.