For years, advocates of the Second Amendment have fought tooth and nail to ensure that no American was left without the right to obtain a carry permit. Now an even more salutary standard has become fashionable: The abolition of the permitting system in its entirety. In 2015, three states added their names to the growing list of those that have adopted “constitutional carry†— states, that is, in which Americans do not need to obtain permits before legally carrying guns. Last year, another three joined their ranks. This year, the number joining could be as high as five.