Farmer's struggled more during the 1920's, because everyone one focused on factory production
Answer: I would advise Augustus to not reduce the program.
Explanation: This would cause and uprising within his city and also compromise his trading with Eqypt and Spain. There could be a compromise whereby the grain could be less reduced, however, to shut it down would be a massive uprising.
The Congress of the United States in fact retains most of the power in these two areas relative to the President and the individual states, with Congress having the power to declare war and confirm ambassadors appointed by the President.
It would be the United States that has the highest number of Fortune 100 companies, with roughly 127 companies making the list as of 2015, although Germany is also a high contender.