The primary function of a lobbying group in politics is to influence legislative and policymaking processes on behalf of particular interests or causes. These groups engage with lawmakers, provide information, conduct research, and advocate for specific policies that align with their objectives. Lobbyists aim to persuade government officials to enact favorable legislation or oppose bills detrimental to their interests. By representing diverse sectors, such as business, labor, or environmental causes, lobbying groups play a significant role in shaping the discourse and outcomes of public policy.