Is TGD something like what Switzerland has?
By the way, the US system is probably the closest thing to that already outside of Switzerland; only the way the Founding Fathers intended it to operate has been eroded by creeping expansion of Federal powers. If you’ve never read Daniel Hannan’s book “The New Road to Serfdom: a Warning to America”, I am sure you will enjoy it.
No-one has as much power over “local” government, as Americans. For example, no-one else in the world gets to influence local policing like Americans who get to elect the local Sherrif.
It actually wouldn’t take as much change to transform the US’s system into a TGD one, as it would to transform that of any other country apart from Switzerland.