"Section 2
1: The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States;…"
Not so sure about well regulated, but the unorganized militia stands at the ready in far greater numbers than the southern poverty law center has in their nightmares. FYI, 2010 Census counted 28 million veterans and we all remember the Oath we swore.