He did not have all the people in place.
One failed attempt was still an attempt.
Add to that he was unprepared when he took office last time.
Read The Fifth Risk by Michael Lewis for several reasons. This is one.
At no time did he ever have the entire GOP political establishment behind him -- like Heritage, etc.
He does now.
This is a game-changer.
It is naive -- smacking into gross ignorance -- to not understand how using the lack of a successful coupe last time does not mean it won't be successful this time.
(History books are filled with people like this who tried once -- failed and then succeeded.)