I'll do everything I'm required to do by law': Pompeo on whether he will testify | ABC News This interview illustrates the central importance of the First Amendment to the US Constitution. "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."