I do not believe that is accurate. I would say the Federal Government can have maximum authority, under certain circumstances, if it is competent enough to know

I do not believe that is accurate. I would say the Federal Government can have maximum authority, under certain circumstances, if it is competent enough to know when to do so. The Federal Government, specifically the Executive Branch, has the authority to declare a nationwide state of emergency. Doing so gives broad (and somewhat undefined) powers to the President and Federal Government. See, for example, The International Emergency Economic Powers Act: https://en.m.wikipedia.org/wiki/International_Emergency_Economic_Powers_Act https://en.m.wikipedia.org/wiki/International_Emergency_Econ... Edit, to add: I don’t think the IEEPA applies here, but there are a number of Congressional Acts that give the President and Federal Government tremendous power to regulate State goings-on. This was just the first one I could think of.