Welcome to Supreme Court Brief. The court has one argument this morning in a case about tribal police authority involving a search. We look at competing amicus briefs. Justice Sotomayor called on the U.S. Sentencing Commission to confront a circuit split, but the commission has a problem—it lacks a quorum of voting members.

Thanks for reading and your feedback is welcome and appreciated. Contact Marcia Coyle at [email protected] and follow her on Twitter @MarciaCoyle.