or kids on a school trip excited to see a celebrity. >> who's the best student? >> reporter: trump supporters here are quite enthuse yasic. trump is still on top in new hampshire but other candidates are gaining traction. a fresh poll has marco rubio in third place, five times the support he had just two months ago. >> there's a brand new poll that chose marco rubio doing better. what do you say to that? >> all i know is i'm number one. >> reporter: trump stepped up attacks on rubio, revealed concern. >> marco rubio has a disaster on his finances. >> reporter: trump is seizing on new florida newspaper reports about rubio's use of a credit card for personal use. he insists he paid personal charges back. >> every month i would go through the bills.