Trump's EO on immigration was equivalent to him suggesting that we should have cake and ice cream when we celebrate someone's birthday to his most ardent supporters. The fact that celebratory cake and ice cream has already been established is of little consequence to those people. Where Trump went wrong was that the context, randomness, and consequence of his identifying certain people from certain countries being designated for "extreme vetting" shows a stunning disregard for established immigration policy, and his total ignorance of the international indignities caused by his ill thought out circus presentation of these EO's.

I'd be interested in an answer as well.