To take it one step further, Trump's whole schtick is doing things like calling people pigs, and then, when other people criticize him for it, turning around and insulting THOSE people too. This whole thing is nothing new, and it's nothing but an attention-grabbing act by attention-whore Trump.
Without Trump the other GOP candidates would not be getting much attention. They should thank Trump the “attention whore” for getting them a huge audience. It is up to them to take advantage of the opportunity. No Trump, no audience.