Mr. Tran is the first serious challenger Sanchez has faced in recent years.
A message left with the Sanchez campaign was not immediately returned Monday.
NEVADA
Governor at work from hospital
CARSON CITY | Nevada Gov. Jim Gibbons remains hospitalized but he plans to call in to his first administrative meetings since undergoing surgery to repair a broken pelvis.
Gibbons aide Dan Burns tells the Associated Press the 65-year-old Republican governor planned to meet Monday with state budget and transportation chiefs at Renown Medical Center in Reno.
He plans to call in for Tuesday's Department of Transportation and Board of Examiners meetings.
The governor was hurt when he fell from a horse Sept. 21 at a ranch north of Pyramid Lake.
Mr. Burns said doctors inserted two 10-inch bolts, a plate and several other screws to repair the pelvic injuries.
Mr. Gibbons told the Nevada Appeal that doctors tell him that with rehabilitation he should recover completely.
