This paper compares the personal background characteristics and voting behavior of Wisconsin state legislators in two legislative sessions separated by 40 years (1965-1966 and 2005-2006). The study uses cluster analysis to graphically display the differences in the voting patterns of the two sessions, an indicator that can be used in this and other legislative settings to signal the need for investigation and reform. Findings of the analysis indicate little change in the personal characteristics of the legislators but major differences in voting behavior. This suggests a dramatic and arguably harmful shift in the operation of the state's political system, which could impact policymaking in higher education and other areas. Speculation on how the political shift occurred and possible directions for the future are included. Appended are: (1) Wisconsin's Legislative Accomplishments; (2) Changes in Wisconsin Legislators' Background Characteristics; and (3) Changes in Wisconsin Legislators' Behavioral Characteristics. (Contains 19 tables, 3 figures and 21 footnotes.)