As the Supreme Court ended another session, the question many Washington watchers asked was whether ailing Chief Justice William Rehnquist would step down — and if so, who would replace him. The surprise retirement of Justice Sandra Day O'Connor added to President Bush's options.
The president's dilemma is whether to elevate a currently sitting justice. Historically, such appointments are rare. Of the 16 chief justices in American history, only five previously served as associate justices.