Yes, Allan, it has been reported from time to time that President Trump might have a slight credibility problem. Although it likely will become a little more confusing as the new Mexican president is considered by many to be a leftist version of Trump.
And thus their conversations may most go like so. “You’re a liar. No, you’re a bigger liar.” Very informative stuff to be sure. Although talk is cheap and a lot better than a monstrously expensive and pointless wall.