<Li> United States v. Clary, 846 F. Supp. 768, 796 - 797 (E.D. Mo . 1994) </Li> <Li> United States v. Flowers, 912 F. 2d 707, 708 (4th Cir. 1990) </Li> <Li> United States v. Lewis, 921 F. 2d 1294, 1296 (1990) </Li> <Li> United States v. Martinez - Fuerte, 428 U.S. 543 (1976) </Li>

What idea was the foundation for jim crow laws (5 points)