The Constitution of the United States PREAMBLE We, the people of the United States, in order to form a more perfect Union, establish justice, insure domestic tranquility, provide for the com- mon defense, promote the general welfare, and secure the blessings of lib- erty to ourselves and our posterity, do ordain and establish this Constitu- tion for the United States of America. ARTICLE I Section 1. Legislative powers; in whom vested All legislative powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representa- tives. Section 2. House of Representatives, how and by whom chosen Qual- ifications of a Representative. Representatives and direct taxes, how apportioned. Enumeration. Vacancies to be filled. Power of choosing officers, and of impeachment. 1. The House of Representatives shall be co . . .