" 

  
 That is pretty good, thank you very much.  Technically, the Supreme Court in Heller affirmed Parker v. District of Columbia that the DC ordinance was in violation of the Second Amendment.  In the case of McDonald, the Supreme Court did not rule that the Chicago ordinance was in violation of the Second Amendment.  What the SCOTUS did was to hold that the circuit court had used the wrong standard (vis a vis Incorporation) and the case was remand back to the circuit court for re-trial.  That re-trial has not happened yet, so at present, just one gun law has been deemed invalid.   "