from cbs news and "the new york times," our nbc news online poll which shows trump balling behind carson. this one tying him. you had months where donald trump didn't trail in any polls. we have two in the last week where ben carson has caught him. the new numbers from new hampshire, iowa is the first state, trump in second place there. new hampshire, the second state to vote, trump still in the lead. but marco rubio tripling his support in new hampshire just since september. donald trump actually down two points. the real warning sign for trump is this. when they took this poll in september, do you have a favorable view of the candidate or unfavorable? donald trump was plus 18. that number has dropped.