The 'Preamble to the United States Constitution' is a brief introductory statement of the Constitution's fundamental purposes and guiding principles. It states in general terms, and courts have referred to it as reliable evidence of the Founding Fathers' intentions regarding the 'Constitution's' meaning and what they hoped the 'Constitution' would achieve:

"We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America."

The 'Preamble' was placed in the 'Constitution' during the last days of the Constitutional Convention by the Committee on Style, which wrote its final draft, with Gouverneur Morris leading the effort. It was not proposed or discussed on the floor of the convention beforehand.

The change was made out of necessity, as the 'Constitution' provided that whenever the popularly elected ratifying conventions of nine states gave their approval, it would go into effect for those nine, irrespective of whether any of the remaining states ratified.

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