Comment: Fritz:  I think it's virtually impossible to make sense of Mr. Trump's behavior.  He was very adament regarding President Obama and Ms Clinton being the "founders of ISIS."  His conservative talk show interviewer took pains to give Mr Trump the chance to "walk back" his accusation.  Instead, he repeated it.  Only after the ensuing firestorm did he comment "sarcasm, though not too much". ...still, of course with no apology for the accusation.

Outrageous comments and actions are appropriate and expected of "shock jocks", reality TV hosts such as Mr. Trump and Jerry Springer, and right-wing hate-mongers such as Rush Limbaugh, Sean Hannity and Lars Larson.  That outrage is part of the act..without it these folks wouldn't be multimillionaires.  

However, it's hardly unreasonable to expect more, far more from a serious candidate for the Presidency.  Mr. Trump is a Carnival Barker and that role has been the foundation of his business success.  Qualifications for President are very different