Cleveland's challenge of a state law that prevents Ohio cities from making their own gun laws faces a new opponent -- The National Rifle Association. The NRA reported Wednesday that it intervened in a lawsuit that Cleveland filed against the state in March in an attempt to overturn the law. "We have joined in this lawsuit as a defendant-intervenor to protect law-abiding gun owners in Ohio from harassment by an unreasonable and confusing patchwork of municipal gun laws," NRA chief lobbyist Chris W. Cox said in a statement. A new provision of the state's concealed-carry gun law voided local firearms...