Political parties serve several crucial functions in a democracy. They facilitate political participation by mobilizing voters and streamlining the electoral process. Parties also play a significant role in formulating and promoting policy agendas, reflecting the interests and values of their constituents. They provide a structure for political debate and competition, helping to organize governmental power and function effectively. Additionally, parties engage in candidate recruitment and support, influencing the selection of representatives at various levels, which ultimately helps shape public policy and governance.