The transformation of the United States from a traditional republic to a democratic nation run in large measure by a single executive took a couple of hundred years.

I have not broken the laws of the United States or the laws of the Dominican Republic.

The United States appears to be a debtor nation in perpetuity.

NATO's essentially run by the United States.

The rise of the presidency began with the Louisiana Purchase, which in 1803 doubled the land mass of the United States. History taught the framers that, just as Rome changed from republic to empire with conquest of new lands, territorial acquisition would lead to the centralization of political power.

The historical problem of the United States is to admit that it is a multiracial and multi-ethnic nation.