Answer:
These laws were not rigorously enforced, however, until the years between 1900 and 1920, when those sympathetic to the views of the progressives came to power. During this time, many of today's regulatory agencies were created, including the Interstate Commerce Commission, the Food and Drug Administration and the Federal Trade Commission.
Explanation:
Not the best picture but has the best answer!
The answer would be “it failed to align states’ economic and political interests.”