As the Pope just wrapped up a six day visit to Mexico, he had some words for Donald Trump and of course Trump did not hold his tongue to back fire at the Pope. No respect no matter who you are. 

During the Pope's visit to Mexico, he stated that anyone who wants to build a border wall "is not Christian" when asked about Republican presidential frontrunner Donald Trump.

Trump promptly fired back at the Pope , as classy as he can be and stated:

"For a religious leader to question a person's faith is disgraceful. I am proud to be a Christian and as President I will not allow Christianity to be consistently attacked and weakened,"...

I guess Donald Trump's view on the Pope has changed from 2013 when he tweeted that he liked him so much. No rebuttal from the Pope has been made.