The Supreme Court on Monday denied review of a case challenging Connecticut’s ban on assault weapons.

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The case stems from legislation enacted in both New York and Connecticut in the wake of the 2012 shooting at Sandy Hook Elementary School in Newton, Conn., which left 20 children between the ages of 6 and 7 dead, as well as six adult staff members.

Gun rights advocates argue the bans violate their Second Amendment right to bear arms and that certain provisions are constitutionally vague. In October, the Second Circuit Court of Appeals upheld the bans. It said the core provisions of the New York and Connecticut laws prohibiting the possession of semiautomatic assault weapons and large‐capacity magazines do not violate the Second Amendment and provisions in the laws are not vague.

"Because the prohibitions are substantially related to the important governmental interests of public safety and crime reduction, they pass constitutional muster," the court said.