 They were to make their decisions within the bounds of the First Amendment and the Establishment Clause.The Establishment Clause states that Congress cannot make a law "respecting an establishment of religion, or prohibiting the free exercise thereof,"  so the Board had to follow the same protocol in their decisions as well.The Board denied the Ku Klux Klan's permit request "on the grounds that the permit would violate the Establishment Clause," on the same day that they approved the display of a menorah on the square.