The US Supreme Court has announced that Chief Justice William Rehnquist, 80, was hospitalized over the weekend for treatment of thyroid cancer. Rehnquist underwent a tracheotomy to allow him to breathe. The Court expected Rehnquist to be released from Bethesda Naval Hospital this week, and to preside over the court's session next Monday. MSNBC has more.
UPDATE: The Supreme Court press release is now online here.