Amen.
But what would be better is for all politicians to read the Constitution and be able to pass a hard test on the Constitution before they are even considering running for any political office and that includes judges as well.
That should be the real litmus test.
Any politician or judge who does not score a passing grade, that is 70 or higher on such a written test, should resign or not run for office.
I love the way you think! All it would take would be for ONE Presidential candidate to ask to be tested.