Question

Who appoints the justices? Who approves the justices? WHY?

Answer 1

Answer:

The President of the United State appoints justices, and have to be approved by the United States Senate; The reason is that the constitution states that all Presidential Appointees by the presidents are to be approved by the Senate.  (By all it includes supreme court justices)

This will just require a simple majority; But during this point and Age, The philibuster mandates 60 Votes.