"If there be a principle that ought not to be questioned within the United States, it is that every man has a right to abolish an old government and establish a new one. This principle is not only recorded in every public archive, written in every American heart, and sealed with the blood of American martyrs, but is the only lawful tenure by which the United States hold their existence as a nation." James Madison (1751-1836)

The Historical Background Constitution answers all.

T.R. E!War!