There's never going to be a "wall". There never was going to be a wall.
And when Rump is asked about it he'll simply lie and deny he ever said it as he always does. And then when he's presented with hard evidence that he did indeed say it -- he'll look right at it and STILL deny it.
And y'all will just genuflect and go along with it because you're his useful idiots.
How do you know that? I seriously doubt Trump is going to dump it