State Litigation Privileges

When should states be able to bring these kinds of suits, and when do they have standing? Rit as i understand the current doctrine, states get some kind of special solicitude. But nobody's sure exactly how much special solicitude that is. If you're if your citizens are being unconsationally regulated by the photral government,. I don't get where that comes from. Eare deluding them. We're just adding or giving the world privileges.