Political astuteness, including awareness, knowledge, and involvement, is necessary if nurses are to engage in policy advocacy—a vital aspect of the nursing profession. However, little is known about the effects of learning activities, such as legislative days, on political astuteness. The purpose of this research was to determine if political astuteness changed after participants attended a state nurse legislative day. Pre and post data were collected from participants in two studies (N = 80 and N = 34) using the Political Astuteness Inventory (PAI). Political astuteness scores were significantly higher after participants attended legislative day as compared to before. Age and educational rank were positively correlated with political astuteness. Experiential activities such as attending nurse legislative days that offer opportunities to learn policy advocacy skills can enhance knowledge of and participation in the policy process.