Lindsey Graham

I wanted to add to my reply above that even if such a law could not be used against those already confirmed, it's still a good idea to have one for the future - though it boggles my mind that such a law should even be necessary, as its intent and effects ought to be intuitive in the selection and confirmation process.  In any case, my concern with such a law would be, who sets the qualifications, and who gets to determine if those qualifications have been met?

In addition, not being able to have a retroactive law would not and does not prohibit investigations and impeachment/removals of unqualified judges, including those who were appointed to SCOTUS.