Columbia subject headings:
Constitutional history--United States.
Executive power--United States--History.
Presidents--United States--History.
United States--Politics and government.
Harvard subject headings:
Constitutional history--United States
Executive power--United States--History
Presidents--United States--History
United States--Politics and government.
Princeton subject headings:
Constitutional history--United States.
Executive power--United States--History.
Presidents--United States--History.
United States--Politics and government.