If you buy into the theme of the item, might it be because he no longer has Steve Bannon around as a moderating influence and as a stabilizing presence and personality?

Link Perhaps it is only cantankerousness because his bone spurs are acting up. Like gout or some such.

So who would likely make money off of the wall, vs the spin-off from a Green New Deal?

If he had that border wall would the ghost of the Gipper haunt him, "Mr. Gorbechev, Take Down That Wall?" Causing an identity crisis and having him tweet in Russian? They'd have to get him a new tablet with a popup on-screen Cyrillic keyboard.

The press would go crazy. Few of them can read Russian.