 The Duties of the Three Branches of Government. The three branches of the U.S. government work together to run the country. In this activity, you will examine the duties of the legislative, executive, and judicial branches of government. The Constitution provides for this system so that no one branch has more power than the others. Legislative Branch The Legislative Branch is described in Article 1 of the Constitution. It is comprised of the Senate and the House of Representatives. It makes the laws, votes on whether a bill should become a law, approves the appointments of federal judges, passes the national budget, and has the power to declare war. The Executive Branch The Executive Branch is described in Article 2 of the Constitution. It is comprised of the President and his Cabinet. The President appoints federal judges and other government officials, gives the State of the Union speech, sends bills to Congress. The President also commands the armed forces and meets with leaders of other nations. The Executive Branch also carries out and enforces the laws. The Judicial Branch The Judicial Branch is described in Article 3 of the Constitution and is comprised of all of the courts of the land. The Supreme Court is the highest court in the national court system. The courts that sit below the U.S. Supreme Court are called the U.S. Courts of Appeals. A court of appeals hears challenges to district court decisions from courts located within its circuit. The nation's 94 district or trial courts are called U.S. District Courts. The Judicial Branch also interprets the laws and punishes lawbreakers. You have completed this learning activity.