>because they know that if he can't deliver on his central campaign promise it will tear his base away from him and secure his 2020 defeat. This is not true.

>because they know that if he can't deliver on his central campaign promise it will tear his base away from him and secure his 2020 defeat. This is not true. Trump could capitulate on the wall and he wouldn't lose a single voter in his "MAGA" base. He's basically a personality cult. Sure the conservative talking heads will rant and rave for a while, but by 2020 it will all be forgotten. All of his supporters will find internal justifications to support him again even if it's a simple as "never supporting a 'libtard'". (They would rally around Gorsuch/Kavanaugh, low taxes, et al...) Trump will blame democrats (ofc) and his base will see it that way. "He didn't surrender it's the 'DEEP STATE' that got him!" Pelosi/Schumer base is not so cultish - They won't forgive nor forget. They have everything to lose.