Congress and the presidency symbolize the legislative and executive branches of the United States government, which are organized through complex internal and external structures. Congress is a bicameral legislature with committee structures and leadership hierarchies, while the presidency is a unitary executive with a supporting staff and cabinet. Understanding these organizational structures is important to understanding how American democracy works and how policies are developed and executed. There are two chambers that Congress is divided into, which include, the House of Representatives and the Senate. The House of Representatives is made up of 435 members apportioned by the state population, and is responsible for initiating revenue bills