Looks like 2 of the judges wanted to take the case and probably rule in favor of semi-automatic weapons. Apparently others didn't. We'd better hope that the next president doesn't add an anti-gun judge to SCOTUS otherwise we are in big trouble.
http://www.msnbc.com/msnbc/supreme-court-leaves-assault-weapons-ban-intact
http://www.msnbc.com/msnbc/supreme-court-leaves-assault-weapons-ban-intact
Supreme Court leaves assault weapons ban intact
12/07/15 10:59 AM By Pete Williams
The U.S. Supreme Court Monday handed a legal victory to advocates of banning firearms commonly known as assault weapons.
By leaving a suburban Chicago gun control law intact, the court gave a boost to efforts aimed at imposing such bans elsewhere, at a time of renewed interest in gun regulation after recent mass shootings.
Justices Antonin Scalia and Clarence Thomas said the Supreme Court should have taken the case. Thomas wrote their dissent, said the court should have granted review to prevent the appeals court “from relegating the Second Amendment to a second-class right.”