During an event at Georgetown, Justice Breyer opined on one of the most important rights–hint its not in the Constitution.

#Breyer – most important right in Administrative Procedure Act – if it isn’t published, it isn’t law. If it’s not law, can’t do it

— Josh Blackman (@JoshMBlackman) April 21, 2014

Says the Justice who cited an unpublished book in his McCutcheon dissent.

Though SGB gave a shout-out to Magna Carta:

 

#Breyer I will think back to 1215, and great contribution of Magna Carta was "don’t act in arbitrary way." – Follow a rule of law #SCOTUS

— Josh Blackman (@JoshMBlackman) April 21, 2014