Very necessary, it validates how impartial the court is to some people. There are people that would question a court's validity more if some midwestern appeals

Very necessary, it validates how impartial the court is to some people. There are people that would question a court's validity more if some midwestern appeals circuit had 3 Trump appointees reversing an opinion, just like there are other people that would raise an eyebrow at anything the ninth circuit rules. So they list who was appointed by whom.