The United States are usually described, in general discussions of American as well as comparative politics, as the most constitutionally stable democracy, and as a model of presidential system ‘engineered’ by the creative minds of framers dedicated to establish a democracy based on separated institutions checking their respective use of delegated power. This paper challenges this mechanic approach to constitutional design and evolution. It argues, through historical and theoretical evidence, that the American constitution (much like most constitutions generally, and like the French Fifth republic constitution specifically) could have lead, in the early phase of its implementation, to either a presidential system or a ministerial government, given the combined influences of historical forces and the political sensibilities and strategic actions of the nation’s first leaders. The American constitutional construction has been the product of unstable and temporary coalitions, not the straightforward design of a coherent and cohesive majority. The process is full of doors left open, interpretative disputes, and turning points in the implementation phase, and this project first reviews the different ‘constitutional moments’ of the American constitutive process, and replaces these turning points in a larger political and historical context, as products of historical struggles and legacies of competing visions of governance. The key element of our analysis is to make better substantive use of observations made by different scholars: namely that American revolutionaries, in their efforts to construct a republic, sought not to get rid of the architecture of institutions of Great Britain, but to improve them by setting up mechanisms that would prevent the corruption that had perverted British politics. The British institutions were for the new American political leaders, both their main source of inspiration and the very system they had built so much resentment against. After the frustrating experience of the Articles of the Confederation, the United States Constitution was to be the perfected synthesis of two extremes, executive corruption and legislative tyranny. The two institutions newly constructed had different historical roots: while the presidency was essentially a transformation of the British Crown and Cabinet, Congress was the refinement of much more recent and radical idea of democratic governance. The challenge was to make democratic, efficient and stable not only the institutions themselves, but their interaction as well. This paper indicates that the early United States went, from 1789 to 1800, through a much more floating and unstable implementation phase than what is generally believed: an uneasy struggle of each institution to test and practice its potential for subordination, to assert its prerogatives, and to find its place in the constitutional order. Next, the paper traces the evolution of clauses, statutes, and behaviors that could have led the United States on the evolutionary path towards ministerial government, or a close version of it. We will first look at the design of the constitution and look for clauses that signaled the erection of a presidential system, but left the door open for different ulterior developments: selection process, presence of Cabinet members in the House, senatorial power of appointment, presidential power of removal,
We will then examine the early implementation phase to identify when and how the original model could have taken different equilibration paths. Much attention is given to historical evidence regarding Alexander Hamilton’s political entrepreneurship, his critical attempt to shape executive-legislative relations, and his underlying desire to morph his executive function into prime ministership -in a tellingly similar fashion as the British Lord Treasurer. [ABSTRACT FROM AUTHOR]