Citizen activism plays a pivotal role in shaping government policy by mobilizing public support and influencing legislative priorities. Grassroots movements often arise in response to social injustices or environmental concerns, using advocacy, protests, and community organizing to raise awareness. Successful activism can lead to substantial policy changes, as politicians respond to constituents' demands and shifting public sentiment. The effectiveness of citizen activism demonstrates the power of collective action in democratic societies, driving accountability and responsiveness from elected officials.