Political leaders can build coalitions to advance their agendas by uniting various stakeholders, including lawmakers, interest groups, and community organizations. This requires effective negotiation and consensus-building skills to reconcile differing interests and priorities. By establishing common ground and shared goals, leaders can mobilize resources and support to push specific policies. Coalitions amplify voices and create a broader base of advocacy, which can enhance a leader's ability to drive legislative change and achieve political objectives effectively.