Widmar v. Vincent , 102 S. Ct. 269 ( 1981 )
Elrod v. Burns , 96 S. Ct. 2673 ( 1976 )
Monitor Patriot Co. v. Roy , 91 S. Ct. 621 ( 1971 )
Buckley v. Valeo , 96 S. Ct. 612 ( 1976 )