The central research question examined in this study focused on whether diverse groups react differently. to politics in the workplace as a function of understanding. Understanding moderated the relationships between dimensions of politics perceptions and employee reactions for white males but not for racial/ethnic minorities, as hypothesized. The results for white females were mixed with significant moderating effects of understanding found for the Coworker Political Behavior-Outcomes relationships, and for the Political Organization Policies and Practices-Outcomes relationship. Implications of these results for theory and research are discussed.