How do political parties influence legislation?

Political parties influence legislation by shaping the policy agenda and controlling legislative processes. They prioritize issues for consideration, determining what gets discussed and acted upon within government. In majority party systems, this control allows parties to advance their policy priorities effectively while also influencing public opinion through communication strategies^[2][4].

Moreover, political parties mobilize support for their initiatives by organizing grassroots efforts and leveraging their influence in legislative bodies. This mobilization, along with their ability to form coalitions and maintain party discipline, enhances their capacity to enact desired policies, especially under conditions of divided government and high party polarization^[3][4].