Physics
The Politics of Bureaucratic Discretion in Implementing Contested Laws
Quick fact
The Environmental Protection Agency's 'waters of the United States' rule was repeatedly redefined by successive presidential administrations, expanding to include nearly any waterbody under Obama and contracting under Trump, even though the underlying Clean Water Act remained unchanged.
Why this is interesting
When a law says a sweepstakes must be 'clear and conspicuous,' who decides what that means? The battle over such vague wording is where the real politics of implementation happens—often far from the public eye.