The first section of the Constitution is called what?

the Preamble

Explanation:

The Preamble is a one paragraph introduction to the Constitution. It begins by stating the goals of the Constitution It reads as followed:

"We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, 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."

Answer: Preamble