It's almost like he doesn't even know what the existing laws are.

I would say that he doesn't even know a lot more than this.

To me this is all just grand-standing on his part and that these things would get struck down in court or reversed very quickly. Not to mention that states can write their own laws to counteract any of this if they wanted to. As time passes I kind of find that I don't really understand what the federal government's role in anything other than war actually is.