DES MOINES, IA - JANUARY 28:  Republican presidential candidate Donald Trump (L) listens as fellow candidate Mike Huckabee speaks to veterans at Drake University on January 28, 2016 in Des Moines, Iowa. Donald Trump held his alternative event to benefit veterans after withdrawing from the televised Fox News/Google  GOP debate  which airs at the same time.  (Photo by Christopher Furlong/Getty Images)