Interest groups play a significant role in the political system by advocating for specific interests and influencing policy decisions. These groups often mobilize resources and constituents to promote their agendas, thereby fostering civic engagement and participation. They engage in lobbying, provide research and information to policymakers, and help amplify collective voices on issues ranging from environmental protection to business interests. By representing diverse perspectives, they contribute to the democratic process, balancing the influence of various stakeholders in shaping public policy.