Which of the following is NOT a power granted to Congress by the Constitution?

The power to appoint Supreme Court justices is not granted to Congress by the Constitution. Instead, this power resides with the President of the United States, who nominates justices, and then the Senate has the authority to confirm or reject those nominations. This separation of powers is outlined in Article II of the Constitution, which explicitly details the roles of the executive branch.

In contrast, the powers granted to Congress, such as regulating commerce (Article I, Section 8), declaring war (Article I, Section 8), and levying taxes (Article I, Section 8), are clearly enumerated in the Constitution. Each of these powers establishes Congress's role in managing the economic and military activities of the nation, highlighting the legislative branch's responsibilities and authority set forth by the Constitution.