First, the President must nominate someone to become a Justice on the United States Supreme Court when there is a vacancy. Then, the Senate must confirm the nomination with a majority vote.
Explanation:
There are no qualifications listed by the Constitution for becoming a Justice. The only steps one has to go through is the nomination and Senate confirmation.
However, in practice, having experience in law is a requirement as all previous Justices have been trained in law, even if they didn't go to law school.
He did not like being called any formal names other than president, he liked being known as one with his people, and he seemed the advice of others when running his country