New York Attorney General Eric Schneiderman is asking Congress to walk away from proposed legislation that would allow concealed carry gun permits issued from one state to be recognized nationally.

The legislation is backed by the National Rifle Association and a spokesperson for the organization says the bill is the group’s top legislative priority.

Schneiderman and 16 other Attorneys General wrote to congressional leaders saying the passage of such a law would “lead to the death of police officers and civilians, the proliferation of gun traffickers and acts of terrorism and other mass violence.”

The letter from Schneiderman and others comes just weeks after the shooting death of 58 people in Las Vegas.