CCN has a great article about the "Supremes' using their personal cell phones and personal Emails for official Court business.
This was why the Republicans viciously attacked Hillary Clinton - and made her lose becoming President.
(Instead we got the great self - described Genius Trump - and ended up with the greatest President in U. S. History - as He will tell you.)
Anyway - Hillary got politically Screwed with the cell phone and email 'manufactured' Scandals.
Republicans Lie and Democrats politically Die.
Meanwhile - for many years over at the Supreme Court they were using their cell phones and personal Email for Supreme Court business.
Even while Hillary was being attacked.
(And the Court had Secure computer Servers set up for their use.)
But - You can't tell the Supreme Court what to do.
They are a Law unto themselves.