I'm not an expert of constituional law, but Article I section 10 says: No State shall enter into any Treaty, Alliance, or Confederation; grant Letters of Marqu

I'm not an expert of constituional law, but Article I section 10 says: No State shall enter into any Treaty, Alliance, or Confederation; grant Letters of Marque and Reprisal; coin Money; emit Bills of Credit; https://constitution.congress.gov/browse/article-1/section-10/ https://constitution.congress.gov/browse/article-1/section-1...