[GrouchoTex]

So let’s say Trump asked Congress for the Wall and they say what will you give us in return?

What if it is “We will pass a bill for the Wall, an its funding and you in turn, allow Obamacare to stand,” then what?

[TornadoAlley3]

If it is really the only choice you say ok. Build the wall. A victory gets you more public approval. More votes in house and senate and you then kill obamacare. Simply because you win one issue, lose another does not mean you can never visit that issue you lost on again. Once you have those super majorities you do not lose.