Public interest law plays a vital role in politics by representing disadvantaged groups and addressing issues of social justice. By advocating for policies that promote equity and fairness, public interest lawyers work to challenge injustices in the legal system. Their efforts can lead to significant changes in legislation and public policy, especially in areas such as civil rights, environmental protection, and healthcare access. Public interest law helps ensure that the voices of those typically marginalized are heard, impacting political decisions that affect their lives.