I'm guessing a rapidly increasing number of them in the near future.
By who? And I'm honestly curious because I'm trying to figure just what Holder has his shorts in a twist over. No new gun laws have been passed, and if you listen to the speakers at the NRA convention none are likely to be. There are no restrictions on assault rifles or magazine sizes, so even if those were made in Kansas there isn't any law against it. Is it the clause that says any federal law in violation of the Second Amendment is null and void in Kansas? Why should Holder give a crap about that? Kansas doesn't decide what's constitutional and what isn't, and Kansas isn't threatening to arrest any federal official enforcing a federal law that doesn't involve a gun manufactured, sold, and owned in Kansas. So that's a total non-issue. If Holder had been smart his reaction to the Kansas legislation should have been "Yeah, whatever" and let it fade into obscurity. But if this administration isn't smart and if it's good at one thing it's drawing lines in the sand that it promptly has to backtrack on.