Objective. Following evolutionary psychology, we argue that physical stature matters in preferences regarding political leadership. Particularly, a preference for physically formidable leaders evolved to promote survivability in the violent human ancestral history. Methods. We present two studies of original data to assess individual attitudes regarding the association between physical stature and political leadership. Analytical methods include ordered probit regression. Results. The findings are consistent with the evolutionary theory presented here. Study 1 indicates that individuals tend to prefer leaders with greater physical stature, while Study 2 indicates that males with greater physical stature are more likely to think of themselves as qualified to be a leader and, through this increased sense of efficacy, they are more likely to demonstrate interest in pursuing a leadership position. Conclusion. Consistent with emerging evidence from other research perspectives, political behavior, in this case preferences regarding political leadership, is shaped by both environmental and evolutionary forces.There is increasing recognition that human behavior is subject to both social and biological effects. Despite the rejection of evolutionary theory by social scientists for much of the 20th century (Degler, 1993), emerging evidence suggests that behavior is shaped by the environment as well as by evolutionary adaptation, genetic inheritance, and genotypic-environmental interaction. For example, research shows that the number of years of school completed by adoptees and their biological mothers are significantly related (Björklund, Lindahl, and Plug, 2006), that variations in sex hormones modulate spatial cognition in women (Hausmann et al., 2000), and that religiosity is substantially influenced by genetic inheritance