From a press release by the Second Amendment Foundation:
Following Thursday’s (5-4) ruling by the U.S. Supreme Court in the case of District of Columbia v. Heller that the Second Amendment protects an individual civil right to keep and bear arms, and that a municipal gun ban violates that right, the Second Amendment Foundation (SAF) and the Illinois State Rifle Association (ISRA) filed a federal lawsuit (complaint) challenging the City of Chicago’s long-standing handgun ban.

“Chicago’s handgun ban has failed to stop violent crime,” SAF founder Alan Gottlieb stated. “It’s time to give the Constitution a chance.”