republicans hard time swallow late mention low yet controversy swirl around newly crown standard-bearer course everyone see despicable attack donald trump level parent muslim american soldier army captain humayun khan hero father khizr khan dare criticize bigotry well one republican enough come strongly trump remarks.senator john mccain r-az trump insult last year prisoner war nearly years blast trump strongly word statement mccain say trump denigrate khan family sacrifice entire statement full via cnn feature image via alex wong/getty image mccain slam trump attack khans represent gop