A majority vote of the justices
Answer:
here's something to help you out After both the House and Senate have approved a bill in identical form, the bill is sent to the President. If the President approves of the legislation, it is signed and becomes law. If the President takes no action for ten days while Congress is in session, the bill automatically becomes law.
Explanation:
Took place after world war II
The US congress did not ratify the Genocide Convention.