Senator Annette Dubas of Fullerton announced plans to run for Governor Dave Heineman's job on Thursday. She will face former University of Nebraska Regent Chuck Hassebrook in the primary in 2014.
Dubas is a farmer and rancher serving her second term in the state Legislature.
Other possible Democratic gubernatorial candidates include state Sen. Steve Lathrop, of Omaha, and former gubernatorial candidate Mike Meister, a Scottsbluff attorney who lost to Heineman in 2010.
The Republican field is likely to be crowded as well because Heineman is unable to run because of term limits. State Sen. Charlie Janssen of Fremont has declared his candidacy while several other GOP contenders are still considering a run.