Words are imperfect instruments for conveying ideas, and interpreting the intended meaning of words is often a challenge, especially when more than two centuries have passed since the words were written and their meanings have evolved over the years. For example, the terms “executive power” and “declare war” had widely understood meanings when the Constitution was written. In his classic 1922 study, The Control of American Foreign Relations, Quincy Wright explained that “when the constitutional convention gave ‘executive power’ to the President, the foreign relations power was the essential element in the grant, but they carefully protected this power from abuse by provisions for senatorial or congressional veto.” Wright referred to the writings of Locke, Montesquieu, and Blackstone5 as “the political Bibles of the constitutional fathers,”6 adding: “In foreign affairs . . . the controlling
force is the reverse of that in domestic legislation. The initiation and development of details is with the President, checked only by the veto of the Senate or Congress upon completed proposals.”