In United States v. Lopez, the Supreme Court declared the Gun-Free School Zones Act an unconstitutional overreach, as the case was seen by some experts as signaling a shift in the court’s interpretation of the commerce clause of the Constitution. Alfonzo Lopez, a 12th-grade student who carried a concealed weapon into his San Antonio high school, was charged under the statute. He challenged his conviction and the Gun-Free School Zones Act, saying Congress didn’t have the constitutional authority to ban guns in school zones. Lopez was found guilty following a bench trial and sentenced to six months’ imprisonment and two years’ supervised release. Schools were controlled by state and local governments and weren’t under the federal government’s authority. The federal government claimed that it had authority to ban guns in schools under its commerce power. The government asserted that the law was related to interstate commerce because guns in schools led to gun violence. The Supreme Court rejected the government’s claim, holding that the law was not substantially related to commerce.