Donald Trump's audible sniffing throughout Monday night's debate caused many to wonder if he is battling a cold, but Howard Dean took the speculation to another level. Notice Trump sniffing all the time. Coke user? — Howard Dean (@GovHowardDean) September 27, 2016 "Notice Trump sniffling all the time. Coke user?" the former governor of Vermont and onetime Democratic presidential candidate tweeted (yes, from his verified account).