The Unions donate to the Democrats who in turn use the taxpayers money to fulfill the state's unsustainable obligation. When we reach the point that the state can no longer fulfill the obligation then the system goes bankrupt and "poof" go the obligations into bankruptcy. This doesn't seem very moral to me.
As I understand it, there is no provision for states to actually go into bankruptcy.
However, at some point their checks will just start bouncing and suppliers will stop doing business with them.
I believe IL is very near this point now.