The Texas Constitution
Article 1 - BILL OF RIGHTS
Section 23 - RIGHT TO KEEP AND BEAR ARMS
Every citizen shall have the right to keep and bear arms in the lawful defense of himself or the State; but the Legislature shall have power, by law, to regulate the wearing of arms, with a view to prevent crime.
And Texas, a prior sovereign nation, has the right to secede.
The Supremes better think this though!