first from the fox news deck, only the second time since july, ben carson now tops donald trump among republicans in a national poll. the cbs news/ the new york times survey has carson at 26% ahead of trump at 22% then there s all rest of them down in single digits. four polls in the last week have shown carson taking the lead in iowa, home of the first presidential contest. donald trump says he usually trusts the polls just not the ones coming out lately. i believe in polls. i generally believe in polls. the thing with these polls they re all so different, thai co they re coming from all over the lot. one guy s up here, somebody else is up there. you see swings of 10 and 12 points and, you know, like immediately even the same day. so right now, it s not very scientific. not very scientific. suddenly he does not like the not very scientific the new york times /cbs news poll, but he s tweeting lots of love for a poll that doesn t meet fox news standards for air. we don t even ment