The U.S. Supreme Court could announce as early as Tuesday whether it will hear a challenge to a suburban Chicago law banning firearms commonly known as assault weapons, NBC News reported.
Gun rights advocates are challenging a 2013 law passed in Highland Park, Illinois, that bans the sale, purchase, or possession of semi-automatic weapons that can hold more than 10 rounds in a single ammunition clip or magazine.
In passing the law, city officials cited the 2012 shootings at Sandy Hook Elementary School in Connecticut and a movie theater in Aurora, Colorado.
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If the court agrees to hear the case, it would cast a shadow over similar bans in seven states. But declining to take it up would boost efforts to impose such bans elsewhere, at a time of renewed interest in gun regulation after recent mass shootings.