Did Trump get an "F" in Negotiation?

During his recent trip to Mexico, Trump reported that the subject of who was going to pay for his billion dollar wall did not come up.

Really?

His biggest campaign promise didn't come up when he went to Mexico? This brings up the question; Did he go there to try to negotiate with Mexico to get them to say they'd pay for his wall?

Makes us wonder if his trip to Mexico was a ploy to show off his "great" negotiation skills right before  his big immigration speech.

And he came back with ... nothing.

So, did he lie to America when he said the subject didn't even come up? The Mexican government said it did and that Trump was told Mexico would not pay for his wall.

Really? Why would they? If Canada said they wanted a wall, would America pay for it? Of course not.

Is Trump lying to American just to save face? Does he consider the American public that stupid? Why would he go to Mexico and not bring up the subject of his infamous wall?

If he tries to build the wall the American tax payers will be stuck with the billion dollar bill and he can't admit that, can he?

Who believes the subject just didn't come up???