James Madison who was known as the father of constitution, his views did not prevails the with the decision of allowing the elected person to serve in supreme court.
He researched so many texts about examining every form of government. He concluded after his research that a confederated form of government would not going to work.
He even designed a framework of constitution that would avoid the problems Madison has been the most active convection delegate as his given explanations and conclusions completely helped the constitution in giving a good sight.