It's baffling how something so fundamental to constitutional law is a mystery to so many people here on THIS website.
But this shouldn't be a surprise to me. I learned long ago that too many so-called "constitutional conservatives" forget all about this until it's a DEMOCRAT in the White House trying to usurp the role of Congress.
I don't think it's a mystery to those people. They don't care if someone is Constitutional or not as long as they like the result.