(U.S. Term Limits v Thornton) unconstitutional unconstitutional U.S. Term Limits v. Thornton U.S. Term Limits v. Thornton U.S. Term Limits, Inc. v. Thornton struck down this amendment unconstitutional U.S. Term Limits v. Thornton unconstitutional Summary U.S. Term Limits, Inc. v. Thornton U.S. Term Limits v. Thornton writes U.S. Term Limits v. Thornton (U.S. Term Limits v Thornton) These efforts were ruled invalid. writes struck down this amendment U. S. Term Limits v. Thornton U.S. Term Limits v. Thornton unconstitutional U.S. Term Limits, Inc. v. Thornton (U.S. Term Limits v Thornton) (U.S. Term Limits v Thornton) shot it down unconstitutional