The media has been very condescending to both Trump and his supporters. That he keeps outsmarting them and showing them up must rankle.
Yes, it's because Trump continually outsmarts them--and always will because he is much smarter than they are---smarter, more truthful, and more decent--and because he has no respect for them or their opinions.
They are people of mediocre intellect at best. Trump is brilliant, and his intellect--and everything else about him--towers over them.
He is larger than life, a hero come to right wrong, basic human goodness and decency come to triumph over evil, and because of him, they see themselves--and everyone else sees them--as the lilliputians that they are.
For them to be dismissed, their opinions scorned, their fury disregarded enrages them. They, who thought they had reached some kind of pinnacle, suddenly finding themselves the objects of ridicule and amusement, cannot bear the truth.
And they have no idea why the American people despise them.