(KNZA)--A fourth candidate has filed for the position of Doniphan County Sheriff.

The Doniphan County Clerk's Office reports Mike Liechti, of Wathena, filed Friday as a Republican candidate.

Liechti previously served as a police officer for 22 years.

He joins incumbent Chad Clary, Nick Popple and Dustin Robinson is seeking the Republican nomination.

Candidates have until noon, June 1 to file.

The primary election will be held August 4 and the general election is November 3.