That’s my take as well.
I used to have some respect for Levin, but Isara not only destroyed my appreciation for Cruz, but he did a number on Levin too.
It’s well and good to understand affairs Constitutional.
It’s not so well and good when the number of people actually willing to take the idea seriously is continually dwindling. There has been so much uncontrolled court cruft on the Constitution that it might as well have been demoted to Good Idea. And nothing short of amendment could stop this; way too much inertia, way too many vested interests. And this is not something that would be in any president’s bailiwick, at least not the cautious spoken Cruz, though if Trump really got on fire about an issue you might hear thunder from his bully pulpit about a constitutional amendment being needed.