Buchwald v. University of New Mexico:
a.    “Freedom of travel and association”
(1)    Girl was denied admission to medical school b/c of her short residency in New Mexico.
(2)    P claimed violation of her rights under the Commerce Clause–right to travel.
(3)    Court used Bakke: other factors besides race that can be taken into consideration.  If you have a rational basis for making another element necessary, then you can.  Long term residency was merely a “plus” factor, like race in Bakke, to be considered in admission.  Plus factors are constitutionally permissible.