How do participatory constituent practices affect the scope and intensity of nonprofit advocacy? In this study, we examine this question through survey data from a random sample of charitable nonprofit organizations in Arizona in 2007. Our findings show that the scope and intensity of nonprofit advocacy tend to increase with constituent board membership, communication with constituents, and level of constituent involvement in strategic decision making. However, the scope and intensity of nonprofit advocacy tends to decrease with increased government funding and private contributions. These findings suggest important implications for organizations wishing to be more effective in influencing public policy.