It’s happened 3 times: Harding, Kennedy, Obama. None were up to the job.
Our system is doomed if the President is a super-representative. If he represents all 435 Congressional districts and all 50 states, then he becomes a dictator at the drop of a hat.
He’s NOT a representative. He’s an executive - a hired hand.
Cruz spent 5 years arguing cases before the U.S. Supreme Court. Obama spent a semester lecturing bored law students about introductory constitutional law.
Cruz understands and respects the Constitution. Obama views the Constitution as an impediment.
I agree with your assessment of Senator as president