Today, the NRA filed its amicus brief for Peruta. The brief is authored by Paul Clement and is extremely powerful. Again, no punches are being pulled.
After setting up the 9th Circuits panel decision, Mr. Clement then writes:
It is accordingly too late in the day to argue that the right to keep and bear arms is less fundamental than the other individual rights enumerated in the Constitution or should be diluted to provide less protection than the Framers guaranteed in the constitutional text. There is consequently no basis to review any regulations that burden that right, let alone those that burden it substantially, under anything less demanding than the strict scrutiny that governs restrictions upon exercise of other fundamental rights.
This brief is just as, if not more powerful than the opening brief and the CORE brief. The brief can be read here
(it's too large to upload by about 50KB).