Because you have to have something to be arrogant about and Cruz has nothing. Trump has everything including an IQ superior to Cruz’s.
Adlai Stevenson III is the highest IQ presidential candidate on record— and you know what.... he lost, big time to a personable military executive who conducted Allied forces in Europe, and who also later condemned the “military industrial complex”. The very same “complex” we face much worse, today, and whom the uni-party desires to control so they can milk even more out of our pockets for their adventures in foreign policy.
True arrogance is a sure sign of deep weakness, weakness of the ego. And.. any negotiator knows that... around the world.