Final answer:
Supreme Court justices are appointed by the President and confirmed by the Senate.
Step-by-step explanation:
The Supreme Court justices are appointed by the President of the United States. This power is granted to the president by the U.S. Constitution, specifically in Article II, Section 2. The president nominates individuals to fill vacancies in the Supreme Court, and these nominations must be confirmed by the Senate.
Learn more about appointment of Supreme Court justices