Well, I believe he is actually "trying" to do what he promised but he has to use the swamp to get anything done. The opposition party following a "resist everything" approach is having the desired effect of slowing and almost stopping any progress. Compare this to the first of Obamas presidency where the Republicans didn't effectively stop or delay anything, it was actually embarrassing. (Of course there are reasons for this that we have been indoctrinated not to discuss unless we be labeled racist).
The "resistance" along with swamp RINOs would rather spend money on lawyers to investigate "Russia-gate" and delaying agenda items , heck they will probably pay enough for the special investigators to pay for the wall by the time it is finished.
In brief: Not having a replacement for Obamycare is extremely embarrassing.
And..to quote a famous person. His wife is hot ......