(You have to read the letter he wrote. It's in the link)
Read all of it. You will see how he fails to remember is that he isn't allowed to make a "Ruling". He just interpreted the Law and Made a Bench Law Ruling without due process of Law by bringing it before a Federal Court and let a Federal Judge make the Ruling.
If someone were to bring suit in Federal Court against Holder..... Who knows what might transpire. It could certainly set a precedent.
He who files first, has the hammer...