According to the latest vacancy data from the U.S. Courts, there were 24 total announced upcoming vacancies for Article III judgeships. Article III judgeships refer to federal judges who serve on the U.S. Supreme Court, the U.S. Court of International Trade, or one of the 13 U.S. courts of appeal or 94 U.S. district courts. These are lifetime appointments made by the president and confirmed by the U.S. Senate.
These positions are not yet vacant but will be at some point in the future with every judge having announced his or her intent to either leave the bench or assume senior status. In the meantime, these judges will continue to serve in their current positions.
The president and Senate do not need to wait for a position to become vacant before they can start the confirmation process for a successor. For example, Ana de Alba was nominated to replace Judge Paul Watford after he resigns on May 31, 2023. There are currently two nominees pending for upcoming vacancies.