The ancient romans contributed two important concepts to politics: citizenship and

The ancient Romans contributed two important concepts to politics: citizenship and the "Rule of Law"--meaning that all citizens, regardless of their status, where held to the same standards under the law. 

Opposition to the nra came to a head in 1935, when the conservative supreme court declared the agency unconstitutional, claiming the nra gave the executive branch regulatory powers that belonged exclusively to congress. this decision began a series of court decisions that overturned key elements of the new deal.