Which supreme court decision was the first time since the new deal that the court limited the power of congress under the commerce clause?

Alfonso Lopez, a high school senior, was convicted by a federal court of violating the Gun Free School Zones Act when he brought a concealed weapon to school.  He subsequently challenged the conviction by arguing that the act was unconstitutional because schools were under the authority of local and state government, not the federal government.  

However, the federal government asserted that, under the Commerce Clause of the Constitution, it had the authority to ban guns because commerce could potentially be negatively affected by gun violence.  The Supreme Court disagreed, saying that the law was not significantly connected to commerce.

these acts divided the south into five military districts.

lol, i think so.

explanation: