13. the answer is...

the courts

The Constitution establishes three branches of government: legislative, executive, and judicial. Article I of the Constitution establishes the legislative branch. Article I explains that Congress makes laws. Congress (the Senate and the House of Representatives) is the legislative branch of the U.S. government. Article II of the Constitution establishes the executive branch. The executive branch enforces the laws that Congress passes. The executive branch makes sure all the people follow the laws of the United States. The president is the head of the executive branch. The vice president and members of the president's cabinet are also part of the executive branch. Article III of the Constitution establishes the judicial branch. The judicial branch places the highest judicial power in the Supreme Court. One responsibility of the judicial branch is to decide if government laws and actions follow the Constitution. This is a very important responsibility.