Gov. Jim Gibbons concedes the election Tuesday night from the steps of the Governor's Mansion in Carson City. Gibbons is the first incumbent governor in Nevada in a century to lose a nominating election.

Cathleen Allison / AP

Gov. Jim Gibbons concedes the election Tuesday night from the steps of the Governor's Mansion in Carson City. Gibbons is the first incumbent governor in Nevada in a century to lose a nominating election.