Counsel: Two former George W. Bush administration solicitors general will face off: Theodore Olson of Gibson, Dunn & Crutcher for New Jersey Gov. Chris Christie and Paul Clement of Kirkland & Ellis representing the NCAA. About: Can the federal government keep states from authorizing legal sports betting? That is the high-stakes question raised by Christie's persistent efforts to allow sports betting at New Jersey's casinos and racetracks, where the state could reap millions in tax revenue.