Senior status is an interesting aspect of the federal courts. When judges reach a combination of age and years of federal service (80), they can take senior status. They still get their original, full time salary, but they only work part time. Once a judge takes senior status, their seat becomes vacant. This means that President Bush gets to appoint another judge to the Fifth Circuit, a fairly conservative court.
Who should the President appoint? If I were president (shudder at that thought), I would pick Texas Solicitor General Ted Cruz. He has an impressive resume: Princeton, Harvard Law, clerking with former Chief Justice Rehnquist, Director of the Office of Policy Planning at the Federal Trade Commission, and Associate Deputy Attorney General at the US Department of Justice. Cruz also did an excellent job arguing before the Supreme Court this past term in LULAC v Perry. He's also only 36 years old. He could amass a lot of experience on the Fifth Circuit and still be young enough to be an excellent Supreme Court pick in 10 years.