system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why was a steroid use in professional sports a congressional matter?
gpt
I can't speak for other professional sports, but baseball tends to get more attention from congress because it is the only business that is exempt from antitrust laws.  Since it is a legal monopoly, there can never be a competing professional baseball league.  With that kind of market power, it was thought best to regulate it in a public arena.  Since steroids could be considered corruption of the integrity of the game and since the free market is not at work... Congress gets involved.