What three branches of government were established under the us Constitution?

The U.S. Constitution established three branches of government: the legislative, executive, and judicial branches. The legislative branch, composed of Congress (the Senate and House of Representatives), is responsible for making laws. The executive branch, headed by the President, enforces those laws, while the judicial branch interprets the laws and administers justice through the court system. This separation of powers is designed to prevent any one branch from becoming too powerful.