Who is the head of the executive branch of the government?

The head of the executive branch of the government is the President. This role is defined in the United States Constitution, which establishes the President as the chief executive officer responsible for enforcing laws, administering the federal government, and overseeing various executive departments. The President also serves as the commander-in-chief of the armed forces and has the authority to make treaties and appoint federal officials, subject to the approval of Congress.

In contrast, the Vice President serves as the second-in-command and primarily acts in support of the President, while Congress is the legislative branch that creates laws and holds the power to override presidential vetoes. The Supreme Court, as the judicial branch, interprets the law and ensures justice but does not have executive authority. Thus, the President's role as the head of the executive branch is pivotal for the functioning of the government, making this choice the correct answer.