Mistake? You sure are putting a lot of thoughts, motivations, and intentions into President Trump's head.
If he backtracked, as you claim, why did he institute a travel ban at all? According to you, he wanted to ban all Muslims from traveling to the U.S. What good will it do to stop travel from just 7 out of 57 Muslim countries? How about Muslims who want to come to the U.S. from those Islamic countries not on the list, or even those who might come in from non-Islamic countries?
From your point of view, the President has made a complete mess of his alleged Muslim ban, because he backtracked after realizing his aim was too broad, but because it's now so narrow, it's an even bigger mistake.
Well, which is it?
And you still haven't answered my question: Did the President institute a Muslim ban?
I explained it earlier but happy to explain it again for you.
Trump backtracked from his campaign statements to temporarily ban all muslims from entering the US and changed it to banning travel from seven countries (the current EO). The leftists know his original intent and regardless of what the EO says they will demagogue it to death. The leftist judges will rule not based on the EO wording or any rationality but use his earlier statements on the campaign trail as justification in their mind to oppose him.
The only solution now is get the new SC justice in place and get a correct ruling on the EO. Right now the 9th will rule against him and the 4-4 Supremes will not be able to overule the 9th.