Trump already graded up to A- in latest Numbers USA evaluation: https://www.numbersusa.com/content/elections/races/presidential/2016-presidential-hopefuls.html
Cruz understands the Constitution, Constructionist interpretation and that is the correct interpretation but damned if 5 members of the SCOTUS didn’t get it. I’d say all in all, people like Alan Keyes could get it as obviously, Mike Lee does too. What was the intent of the framers.