The U.S. Supreme Court has rejected appeals contesting gun regulations in Delaware and Maryland. In Delaware, the Court declined to review a ban on assault-style rifles and high-capacity magazines, a law enacted in 2022 following the Sandy Hook Elementary School tragedy. This ban prohibits specific semi-automatic weapons like AR-15s and AK-47s, although ownership is permitted under certain circumstances for those who possessed these firearms before the law's implementation. Separately, the Court also turned away a challenge to Maryland's handgun licensing requirements, which mandate safety training, fingerprinting, and background checks for handgun purchases. Opponents argued that these stipulations infringe upon Second Amendment rights by creating excessive barriers to gun ownership.

The Supreme Court's decision not to hear these cases leaves the lower court rulings in place. In the Maryland case, a three-judge appeals court panel initially struck down the handgun law, citing a 2022 Supreme Court ruling that broadened gun rights and emphasized the need for firearm regulations to be deeply rooted in historical tradition. However, the full 4th U.S. Circuit Court of Appeals later reinstated the Maryland law, concluding that it did align with historical firearm regulations.