Which of the following powers were allowed under the Articles of Confederation? states were allowed to enter into foreign treaties
the power to raise taxes
control trade
negotiate foreign peace

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.