The Supreme Court dealt a setback Tuesday to abortion clinics in a two-decade-old legal fight over anti-abortion protests, ruling that federal extortion and racketeering laws cannot be used to ban demonstrations.

The 8-0 decision ends a case that the 7th U.S. Circuit Court of Appeals had kept alive despite a 2003 ruling by the high court that lifted a nationwide injunction on anti-abortion groups led by Joseph Scheidler and others.