It is mentioned in the constitution, so yes, it is an official position. The only duty I saw attached to the office of chief justice is that of presiding over impeachment trials in the Senate. Traditionally they also swear in the new president.
Scalia was never Chief Justice. It is not passed down. It is decided by the President and the Senate. It is one of the 9 chairs, but has additional responsibilities.
Is it an official position? Who decides which Justice becomes chief? Do they vote on it?
It is mentioned in the constitution, so yes, it is an official position. The only duty I saw attached to the office of chief justice is that of presiding over impeachment trials in the Senate. Traditionally they also swear in the new president.
Scalia was never Chief Justice. It is not passed down. It is decided by the President and the Senate. It is one of the 9 chairs, but has additional responsibilities.