What are the three branches of government? 1. The legislative branch makes the laws. It is headed by congress. Congress includes the senate and the house of representatives. 2. The judicial branch is headed by the supreme court. It interprets the laws by analyzing the constitution, reviewing laws, and making decisions about states’ rights. 3. The executive branch enforces the laws. It is headed by the president of the united states. The executive branch is in charge of the military, communicates with other countries, and can veto a law.