I guess the best way to humiliate a bully is to stand up to him!!!
"Mexico does not believe in walls. I've said time again; Mexico will not pay for any wall,
"With regards to the payment of the border wall, both Presidents recognized their clear and very public different positions on this very sensitive subject, and agreed to resolve these differences as part of an integral discussion on all aspects of the bilateral relationship,"
"The Presidents also agreed for now to not publicly talk about this controversial topic."
Since the time the conversation took place Trump has not said a word about the wall even when directly asked about it during the joint press conference with British prime minister May.