For it can never be maintained in any tribunal in this country, that the people of a State, in the exercise of the powers of sovereignty, can be restrained within narrower limits than those fixed by the Constitution of the United States, upon the ground that they may make contracts ruinous or injurious to themselves. The principle that they are the best judges of what is for their own interest, is the foundation of our political institutions.
https://www.courtlistener.com/....opinion/86878/ohio-l