Final answer:
Edmond Genet's downfall in America was caused by his violation of diplomatic protocols, which went against American neutrality and led to his recall by the French government.
Step-by-step explanation:
Edmond Genet's downfall in America occurred because of his violation of diplomatic protocols. As the new minister from France, Genet's actions in America, including attempts to commission privateers and raise armies in violation of American neutrality, greatly upset the Washington administration. The French government eventually recalled Genet due to American complaints, and this led to his political downfall in the United States.