9. Scotus found in 1952 that executive orders were legal provided they
have a previous act of congress (law) or constitutional power as it's origin. In kindergarten terms, they can enhance an existing law. Something like that. When George H.W. Bush made his ex order I think he used the gun law from the 1968 Gun Control Act. From what i've read, they say Obama could also use the 1934 National Firearms act (levied a tax on guns) or 1938 Federal Firearms Act (required gun dealers to be licensed) to extend existing laws.