Of course, it could be that he didn't mean it all. It could have been sarcasm. The former mayor of New York City may have been attempting to use sarcasm. To wit: " the use of words that mean the opposite of what you really want to say especially in order to insult someone, to show irritation, or to be funny." Since there obviously was a successful radical Islamic terrorist attack in the eight years before Obama came along, he may have been trying to be funny. Or insulting. To whom, exactly, is unclear. Or perhaps Rudy has just become so rabid on the loco weed that they must be feeding him that he is losing track of his holiest of holies. All that frothing at the mouth seems to be SOP with the GOP.
Or maybe it was sarcasm in the same way that referring to Barack Obama as the founder of ISIS was sarcasm. Maybe we just don't get it. And maybe that's just fine. It's been eight minutes since the last idiotic utterance from the Tahrump campaign. Was that sarcasm?