The US single market and stronger federal controls are the only reason that states have ANY form of sovereignty. The United States was originally established as

The US single market and stronger federal controls are the only reason that states have ANY form of sovereignty. The United States was originally established as a confederacy with weak federal powers, more similar to the political arrangements of the EU than what we have today. The result was an unmitigated economic and foreign relations disaster, such that we risked imploding and being taken over again by the British. We only achieved stability and continued sovereignty by establishing a greater degree of federal authority over the union. What we today have as our Constitution is a direct response to the failed model of a union of autonomous states. And even this has had to be renegotiated in the direction of increased federal power in order to protect and expand democratic rights (ending slavery and it's political legacy). https://en.wikipedia.org/w/index.php?title=Articles_of_Confederation&mobileaction=toggle_view_desktop#The_United_States_of_America_under_the_Articles https://en.wikipedia.org/w/index.php?title=Articles_of_Confe...