Another contender has entered the race for two open county supervisor seats in 2014.
Longtime John Deere machinist Jim Keene, 59, of Dubuque, said joining the three-member board would allow him to give back to the community that has been his home for 40 years. He will be running as a Democrat.
Keene said he has been active in lobbying efforts in Des Moines and has been active in the United Auto Workers Local 94.
If elected, Keene said fixing the county's bridges and rural infrastructure and monitoring the county's transition to regional mental health governance would be priorities.
The terms of Supervisors Eric Manternach and Daryl Klein expire next year.
Former state Sen. Tom Hancock announced his candidacy last week, joining Dubuque Community School Board Member Otto Krueger, local union leader Dave Baker, and Democratic Party activist R.R.S. Stewart.
Manternach has announced his intention to retire from the board. Klein has not yet announced whether he will seek re-election.