McDonald v. Chicago is a court case (parallel to NRA v. Chicago) originally filed before the United States District Court for the Northern District of Illinois,^[1] and for which a petition for certiorari was granted on Sept. 30, 2009, by the Supreme Court of the United States.^[2] The petitioners are seeking to overturn a handgun ban, and other aspects of gun registration regulations affecting rifles and shotguns, in Chicago, Illinois as unconstitutional. This was the first such lawsuit since the landmark Supreme Court ruling in District of Columbia v. Heller, which held that the Second Amendment to the United States Constitution protected an individual right to “keep and bear arms.” The case was filed by Alan Gura, who successfully argued Heller, and Chicago-area attorney David G. Sigale.^[3] The case is sponsored by the Second Amendment Foundation and the Illinois State Rifle Association on behalf of several Chicago residents.

The trial court entered judgment in favor of the City of Chicago on December 18, 2008^[4]. The decision was appealed to the 7th Circuit Court of Appeals and combined with a similar case, NRA v. Chicago. Oral argument was May 26, 2009, and the court issued its opinion on June 2, 2009, rejecting the appeal, allowing the Chicago and Oak Park gun regulations to stand^[5]

The Second Amendment Foundation appealed to the U.S. Supreme Court for certiorari on behalf of their plaintiffs. Certiorari for McDonald was granted on September 30, 2009.^[6] The NRA has separately filed on behalf of their plaintiffs, and has yet to receive a response.