Within the national government, power is divided among three branches: ______, ______, and ______ branches. I. The legislative branch consists of Congress, which has two parts: ______ and______. Congress’ main function is to ______. II. ______ is the head of the executive branch and the country. The function of executive branch is to ______. In addition to ______, ______, and ______, the executive branch consists of _____. III. The function of the judicial branch is to ______ and make sure that ______. There are several levels of federal courts. The Supreme Court is the most important. It has ______ members, who are appointed _______.