S. 225, Omnibus Bill and amendments relating to slavery in the territories, endorsement page, May 8–July 30, 1850

We the People of the United States, in Order to form a more perfect Union... do ordain and establish this Constitution...

E pluribus unum—Out of many, one—expresses the ideal of our Union: many states, one nation. Representing all of the states, Congress has promoted national unity through a process of inquiry, debate, compromise, and consensus. These documents record the continuing legislative efforts to meet the broadest needs of the people.