Legal challenges to anti-evolutionist policies began with the Scopes Trial of 1925, a case the evolutionists actually lost.
Since 1968, however, U.S. courts have consistently held that "creationism" is a particular religious viewpoint and that teaching it in public schools would violate the First Amendment of the Constitution.
For a one page summary of important court cases, see Ten Major Court Cases about Creationism and Evolution.
Chapter 4+ read
In a complaint filed with the United States District Court for the Northern District of West Virginia on May 12, 2015, Kenneth Smith contended that teaching evolution in West Virginia's public school constitutes "the propagation of religious faith" and that it hinders his daughter's ability to enter college and to become a veterinarian.+ read