place behind ben carson. >> i don't believe i did fall behind. it was one poll and a second poll. small polls. and i was in iowa three days ago. we had a town hall that was unbelievable. it was packed. i'll say that i think i'm winning in iowa. i think i'm doing really well we van gel calls, tea party and everything else. that was the only one where i have a slight not lead. >> but just a few hours after he spoke, a third iowa poll showed carson extending the lead in the hawkeye state to 14 points over trump. today's town hall, trump committed what some call a gaffe saying when she started off his father gave him a, quote, small loan of a million dollars. >> not been easy for me. it's not been easy for me. i started off in brooklyn. my father gave me a small loan of a million dollars. i came into manhattan and had to pay him back and with interest. >> joining me now nbc's katy tur in new hampshire.