Many American observers agree that the recent Israeli aggression against the Gaza Strip represented a major challenge for the administration of President Barack Obama because it aggravated the international crises facing American foreign policy and shed light once again on the subject of the decline of American leadership. This paper discusses the decline in the capabilities of the American presidency under Obama and sheds light on the failure of the United States to deal, as it should have, with the Israeli aggression on the Gaza Strip, which was unprecedented in size, destruction, and duration. The paper gives particular focus on the increasing inability of the United States to confront Israeli intransigence.